It's funny, being 43 (almost) and having friends the same age and seeing everyone doing the same basic life evaluation thing. Not a crisis, generally, thankfully, but there's definitely a certain sense of -- comparison? Looking around at what your friends are doing (esp. friends you haven't seen in a while) and considering whether you're happy with where you are right now.
We are, btw. Though I did just quit a third of my job so I'd have more time to write, which is a bit nerve-wracking. It feels so risky. But as Susan said last night, it's an investment in my writing. Okay, then. It's nice to have old friends who have known you a long time to talk this stuff over with!