The good thing these days, is that people have a lot more freedom in how to structure their relationships or not to be in a relationship at all. Same with having children. After a long time of thinking I would never get married, I did at the age of 38. It was largely a practical decision for us, being legal next of kin, the inheritance laws in this country, etc.

I never wanted or had kids, and now I'm getting to the age where it's not possible anyways. I have no regrets as far as that. Occasionally people will make rude or judgemental comments, but I've learned to not let that bother me.