This. The first taste of cat B comes when your friends find their spouses, but that first blush lasts maybe little over a year. With kids it's a bit longer. Al

This. The first taste of cat B comes when your friends find their spouses, but that first blush lasts maybe little over a year. With kids it's a bit longer. Also at least for me: when you have a kid the free time you have without any arrangements tends to be couple of hours here and there. It is just much easier to have solitary hobby than to hunt around for a friend whose schedule your free time slot fits in.