I think I messed up not socialising my son earlier :(

My son is almost 4 and, like most parents, I think he's just the greatest. Intelligent, funny, adorable. He loves Avengers, Thomas and Paw Patrol and will talk/pretend play for hours with me.But I'm so worried he's not socialised enough. I did take him to mother's group but we moved when he was 8 months old, so it's been sporadic since then. He doesn't really know those kids, or their names etc. He's always happy to go to their parties (cake!) but he'll play by himself. If he sees something interesting, he'll hover on the outside and watch. They can get mean about it, like "you can't stand there!" because they don't know him, but it breaks my heart. He goes to kindy a half day a week and loves it, but doesn't really KNOW any of the kids. They are just kids that are there when he is there. Every now and then he'll tell me "One of my friends (any kid is "his friend") put sand in my hair and the teacher told him off" or "one of my friends pushed me over".He has a one year old sister that he absolutely adores and wants to hug and kiss all the time. He has a 3yo cousin who lives far away from us but their nana has been great at getting them to play together so now they are happy to play together. It's still not really conversations or anything but if one wants to play trains, so does the other.I'm not sure how to fix what I've done. Half of me says "I don't even remember the friends I had in kindy so he definitely has time to make friends" and the other half says "all the mum's group kids have friends. All the kindy kids have friends. He needs to learn these skills and you're not teaching him". It should be said that both his dad and I are pretty friendless (but happy that way). But I don't want my kid going through school without any friends, just lonely and drifting from one group to another trying to fit in.So far I've been arranging play dates with kindy friends and letting them go off together and play while I try to bond with the mums, but he just plays by himself. So should I be more interactive like his nana is, and organise one-on-one play dates and get down on the ground with the kids and make them play together? I'm totally lost and please please tell me I haven't permanently screwed up. via /r/Parenting http://ift.tt/2e7ixYw