Hmmm...
I used to feel like I belonged in a very distant universe lol...a wandering nomad or something, It felt like people in society overcomplicated everything.
When I look at the deeper lessons on my generation though (gen Y), i ressonate strongly with the "pluto in scorpio - lost generation" themes (1983 -1995).
When I was in my mid - late twenties, I preferred younger people, friends and if I wasn't already coupled at the time, dating those in their early 20's, same generation but younger then me.
I think I liked how the cynacisim had not reached them yet
I wasn't really interested in having kids either. I was also not ready to be an adult yet either, adulting just looked like insanity to me haha.
Now I wonder when I was fooled into ever becomming one at all lol.
I reckon you could be onto something when you mention the kids factor too - if you are not having a bunch of kids and people your age are, I feel like it would be quite natural to gravitate to a different crowd and scence.