I wish I'd got my son involved in more group activities (scouts etc).
He was unplanned and we were very, very young so
1. I had no idea how to look after myself, never mind a child.
2. The focus was on bringing in enough money to survive, since we were paid so low.
So there never felt the time, and because I hadn't done those things, I didn't even think of them until much later. By then he was already grown up enough to make his own decision.