That’s probably because it easier to not “move on”. Having a family is responsibility not many people can handle - even those that have it can’t handle it. Society pressures us into something we cant handle and it can end badly. I say fuck it, if they want to play games all day and flip burgers, let them. I’m personally not pursuing “the family life” because I don’t think I’d be good at it and I dont think I could handle the stress. I make more money than most do, I have no responsibilities, no debt and no obligations so Im the outsider because family means something different to me. If I ever feel different, I’ll move on when I want. It doesnt make sense to just do it at an arbitrary age set by society.