Why Playing With a Sibling Matters More Than You Think
When we think about childhood development, we often focus on what children are learning: counting, reading, problem-solving, or understanding scientific concepts. But some of the most important learning happens through relationships.
For many children, their sibling is their first peer relationship. It is often the longest relationship they will have in their lifetime and one of the most influential. Through play, siblings learn about themselves, each other, and the world around them.
Play as a Space for Connection
In play therapy, we understand that children develop emotionally through safe, responsive relationships. While parents play a significant role in this process, siblings can also become powerful partners in emotional growth.
When siblings play together, they are doing far more than simply sharing an activity. They are learning how to connect, communicate, negotiate, and understand another person's perspective.
Whether they are building a tower, creating a science experiment, or making a mess together, they are constantly practising important relational skills.
Developing Attunement
Attunement is the ability to notice and respond to another person's emotional state.
During play, siblings learn to recognise when one another is excited, frustrated, proud, nervous, or disappointed. They begin to adjust their behaviour in response to these emotional cues.
These small moments help children develop empathy and strengthen their ability to form healthy relationships throughout life.
Learning Through Emotional Mirroring
Children learn about emotions by observing the people around them.
When a sibling celebrates a success, expresses disappointment, or works through frustration, they provide opportunities for emotional mirroring. Through these experiences, children learn to identify emotions in themselves and others.
This process helps build emotional awareness and supports the development of empathy and social understanding.
Co-Regulation in Action
Co-regulation occurs when one person's emotional state influences another's.
Think about a child who feels nervous about trying a new experiment but gains confidence by watching their sibling participate first. Or a child who becomes frustrated during an activity and is helped by the calm presence of a sibling.
These moments teach children that they do not have to navigate challenges alone. They learn that relationships can provide support, comfort, and confidence.
Building Emotional Regulation Through Play
Play naturally presents opportunities for children to practise emotional regulation.
They learn to wait for turns, manage disappointment when things do not go as planned, cope with mistakes, and persevere through challenges.
Unlike many structured learning environments, play offers these lessons in a way that feels safe, enjoyable, and meaningful to children.
Why Shared Experiences Matter
Research and therapeutic practice consistently show that connection is built through shared experiences.
When siblings laugh together, solve problems together, and explore together, they create memories and relational patterns that strengthen their bond over time.
The activity itself is often less important than the experience of doing it together.
The Messy Lab Approach
At The Messy Lab, we believe that learning and connection go hand in hand.
While our experiments are designed to spark curiosity, scientific thinking, and discovery, they also create opportunities for siblings to engage in meaningful shared experiences.
As children explore, create, and problem-solve together, they are building more than scientific knowledge. They are developing empathy, attunement, co-regulation, emotional regulation, and a stronger relationship with one another.
Jenna | Co founder