How to Support Social Development in Toddlers: What the Research Says

Toddlerhood — approximately ages one
to three — is one of the most important
and most fascinating periods for social
development. The toddler is transforming
from an infant whose social world
is almost entirely defined by the
primary caregiver into a genuine social
being — curious about peers, beginning
to cooperate, showing empathy, and
navigating the first social rules of
family and peer life. Research on
toddler social development provides
specific, evidence-based guidance about
what supports this transformation —
and what parents can specifically do.

This article covers what the research
shows about supporting social development
in toddlers — the most important supports,
the most important experiences, and
what parents can specifically do.

What Toddler Social Development Looks Like

Research on toddler social development
identifies several characteristic features
of this developmental period:

The caregiver relationship remains
central. Research finds that
the primary caregiver relationship —
and the security it provides —
remains the foundation of all
social development in toddlerhood.
The toddler explores the social
world from the secure base
of the attachment relationship.

Peer interest grows. Research
finds that toddlers show increasing
interest in peers — watching
them, imitating them, and gradually
moving toward genuine interaction.
This peer interest is the beginning
of the peer relationships that
will become increasingly central through childhood.

Parallel play is typical —
and important. Research finds
that toddlers primarily engage
in parallel play — playing
alongside rather than with
peers. This is not a social
development problem — it is
a developmentally appropriate
precursor to cooperative play —
and provides important social learning through observation.

Emotional intensity is high —
regulation capacity is low.
Research finds that toddlers
experience emotions intensely —
but have very limited capacity
to regulate those emotions.
The resulting tantrums and
emotional outbursts are developmentally
normal — not signs of social
or emotional difficulty.

Empathy is emerging. Research
finds that genuine empathic
responses — distress at others’
distress, attempts to comfort
upset others — emerge in toddlerhood —
reflecting the beginning of
the genuine concern for others
that social competence requires.

The Most Important Supports for
Toddler Social Development

Research on toddler social development
and what supports it identifies:

Secure attachment — the foundation
of everything. Research consistently
finds that secure attachment —
built through consistent warm
responsive caregiving — is
the most important foundation
for toddler social development.
The securely attached toddler
uses the caregiver as a safe
base for social exploration —
venturing into the social world
with confidence because the
caregiver is reliably available.

Consistent warm responsive caregiving.
Research finds that the quality
of caregiver responsiveness —
responding promptly and warmly
to the toddler’s communications —
is the most important single
predictor of secure attachment
and healthy toddler social development.

Opportunities for peer interaction.
Research finds that exposure
to peers — even in the parallel
play of early toddlerhood —
is genuinely important for
social development. Toddlers
learn social skills through
observing and gradually engaging
with peers in ways that adult
interaction alone cannot provide.

Emotion coaching. Research
by Gottman finds that emotion
coaching — acknowledging and
validating toddlers’ emotional
experiences, helping them name
and understand their feelings —
is one of the most important
parenting practices for toddler
social development — building
the emotional intelligence that social competence requires.

Warm limit-setting. Research
finds that warm, consistent
limit-setting — holding behavioral
limits with warmth and explanation —
is genuinely important for
toddler social development —
because it teaches the social
rules that peer interaction requires.

How to Support Toddler Social
Development Practically

Research on toddler social development
and practical parenting identifies
several specific approaches:

Facilitate peer interaction — regularly.
Research supports providing
regular opportunities for peer
interaction — playgroups, playdates,
park visits — from early toddlerhood.
The interaction does not need
to be cooperative to be valuable —
parallel play alongside peers
provides genuine social learning.

Allow and support natural
peer conflict — with gentle guidance.
Research finds that peer conflict —
over toys, space, and attention —
is completely normal in toddlerhood —
and genuinely important for
social development. Rather
than preventing all conflict —
research supports allowing
natural peer conflict to occur
and providing gentle guidance
through it:

Acknowledge both children’s feelings.
Help generate simple solutions — “Can you take turns?”
Allow the children to practice
resolving conflicts — with support but without taking over.

Name and validate emotions — consistently.
Research supports naming and
validating toddlers’ emotions
consistently — particularly
during emotional outbursts:

“I can see you’re really frustrated —
you wanted that toy and [friend]
has it. That’s really hard.”
“You’re so sad that [friend]
is leaving. You really like playing together.”

Stay calm during tantrums.
Research on toddler emotional
regulation and parental response
finds that the most effective
parental response to tantrums
is calm co-regulation — a warm,
regulated presence — rather
than matching the toddler’s
emotional escalation or becoming
angry or dismissive.

Model prosocial behavior.
Research finds that toddlers
learn social behavior significantly
through observing their caregivers.
Modeling sharing, cooperation,
empathy, and kind communication —
genuinely and naturally — is
one of the most powerful social
development tools available.

Acknowledge and celebrate empathic behavior.
Research finds that acknowledging
and celebrating toddlers’ empathic
responses — “You gave [friend]
a hug because they were sad —
that was so kind” — significantly
reinforces empathy development.

Read books about social situations
and emotions. Research finds
that shared book reading —
particularly books about emotions,
friendships, and social situations —
significantly supports toddler
social and emotional development
through the discussions and
perspective-taking they enable.

What NOT to Do

Research on toddler social development
identifies several common parental
approaches that research finds unhelpful:

Forcing social interaction.
Research finds that forcing
toddlers to interact with peers
or adults — when they are not
ready — produces anxiety rather
than social confidence. Gentle
encouragement and patient availability
produce better outcomes.

Expecting cooperative play
too early. Research finds that
expecting toddlers to engage
in genuine cooperative play —
rather than parallel play —
before they are developmentally
ready produces frustration for
both child and parent.

Preventing all peer conflict.
Research finds that preventing
all peer conflict removes important
social learning opportunities.
Gentle guidance through conflict —
rather than prevention — produces
better social development outcomes.

Dismissing emotional outbursts.
Research finds that dismissing
or minimizing toddlers’ emotional
outbursts — “stop crying,”
“you’re fine” — impairs the
emotional development that
social competence requires.

Try This This Week

Practice 1 — The Peer Interaction Practice
What it is: A deliberate weekly
facilitation of peer interaction —
the most important social development experience for toddlers.

How to do it: Once each week —
provide one genuine peer social experience:

A playdate with a peer of
similar age — even briefly.
A playgroup or toddler group.
A park visit where peer interaction is possible.

Allow parallel play — do not
force interaction.
Stay nearby but allow the
children to navigate interaction independently where possible.

Why it works: Research on
toddler social development consistently
finds that regular peer exposure —
even in the parallel play of
early toddlerhood — is genuinely
important for social development —
providing the social observation
and gradual interaction experience
that peer social competence requires.

Practice 2 — The Conflict Guidance Practice
What it is: A deliberate practice
of guiding rather than preventing
peer conflict — allowing the
social learning that conflict provides.

How to do it: This week when
toddler peer conflict arises —
resist the urge to immediately
intervene and instead:

Observe briefly — can the
children begin to resolve it themselves?
If needed — move in calmly
and acknowledge both children’s feelings.
Offer a simple solution:
“Can you take turns? [Child A]
can have it for a minute —
then [Child B]’s turn.”
Allow the children to practice
the solution — with support.

Why it works: Research on
toddler peer conflict and social
development consistently finds
that guided conflict resolution —
where adults acknowledge feelings
and offer solutions but allow
children to practice — produces
significantly better social
skill development than either
preventing conflict or leaving
toddlers to manage alone.

Practice 3 — The Emotion Coaching Practice
What it is: A deliberate daily
practice of emotion coaching —
building the emotional intelligence
that toddler social development requires.

How to do it: This week —
at every significant emotional moment — practice:

Name the emotion: “You’re
feeling really frustrated right now.”
Validate it: “That makes
complete sense — you really
wanted that.”
Stay calm and warm — co-regulate
rather than escalate.
After the moment — briefly
and warmly connect: “That
was really hard — I’m here.”

Why it works: Research by
Gottman consistently finds that
emotion coaching — practiced
consistently in toddlerhood —
produces significantly better
emotional regulation, social
competence, and mental health
outcomes than parenting that
dismisses or overwhelms toddlers’ emotional experiences.

The Bottom Line

Supporting social development
in toddlers means providing
the secure attachment foundation,
the peer interaction opportunities,
the emotion coaching, and the
warm limit-setting that toddler
social development requires.
Research is clear: parallel
play is normal and important;
peer conflict is a social learning
opportunity; emotion coaching
builds the emotional intelligence
that social competence requires;
and consistent warm responsive
caregiving is the most important
single investment in toddler social development.

Sources

Bowlby, J. (1969).
Attachment and Loss: Vol. 1. Attachment.
Basic Books.

Gottman, J. M., & DeClaire, J.
(1997). Raising an Emotionally
Intelligent Child. Simon & Schuster.

Zahn-Waxler, C., et al. (1992).
Development of concern for others.
Developmental Psychology,
28(1), 126–136.

Hartup, W. W. (1996).
The company they keep.
Child Development, 67(1), 1–13.