Growing up is a time of massive social learning. When children face difficult experiences with their peers, it can leave a lasting mark on how they navigate the world later in life. This study looked at over 51,000 young people across North America and Europe to see how these early experiences shaped their lives.
Researchers found that peer adversity during childhood and adolescence was linked to lower interpersonal functioning in adulthood. Even when researchers accounted for other factors like gender, family problems, and wealth, the link remained. This means that social challenges faced as a child can have a lasting impact on an adult's ability to form healthy connections.
While the study shows a clear connection between early peer struggles and later relationship issues, it did not find specific factors that changed how much this impact occurred. Because these findings are based on long-term observations rather than a controlled trial, we know there is a link, but we cannot say for certain that one caused the other.