Originally Posted by LazyMum
... she sticks with her sports and theatre classes, and whatever other interests she picks up along the way, for socialisation with same-aged kids. That, plus hanging out with cousins, children of family friends, etc.
Making and maintaining friendships and enjoying fun times with friends is usually called "socializing", whereas "socialization" is more about training in following social norms... which many kids may pick up on by casual observation while others may need or benefit from direct teaching, remediation and support in developing flexibility, following instructions and rules (plus understanding when to bend rules and when not to), developing the executive function skills to cope with tasks you don't want to do, avoid crying publicly when frustrated or disappointed, etc.