It's not just golf obviously. I do not have a wife or kids either and I consider myself incredibly fortunate because I can do whatever I want whenever I want. I think I'm fortunate in part because when I ask friends or family with a wife or kids if they want to join me for something I frequently get the "I can't blah blah blah the kids blah blah". I suppose it's possible they can't afford it or I'm just not very fun to hang out with and they're using the kids to string me along. Why I'm not sure, I certainly wouldn't be mad if they told me the truth. I don't think that is the case though, I really think they're handcuffed to their house or daycare schedule.
Your comment reminded me of the stinkeye single people get from married folks though. From my perspective it looks like they're simply jealous but maybe they see it as an insult to their chosen lifestyle.
No stink eye. I certainly did not mean to offend. I was single once as well. I did enjoy my single life, but I would not go back. I really do love my family and enjoy spending time with them. I wouldn't trade my kids for anything. Its not something that can be explained, at least not to me, you have to experience it to understand. I would assume most parents on this site would agree.