The problem is the other people in their 30s are boring, miserable, and second-guessing their life choices constantly. Even if they made the effort to be friends, I couldn't stand them. The only people that don't do that are my friends...my old friends...in my old city...far, far away... Oh, god I'm miserable and second guessing moving here.
My 30s were so so so much better than my 20s, it wasn't even funny. I partied practically non-stop from the point my 1st marriage ended in my early 30s, to when my 2nd one began at 41. I made tons of new friends, dated around a lot and had the best time of my life.
Now that I have 2 kids, a stressful job and my money evaporates the moment it hits my bank account, I also have lost all my friends. The only ones I have now are other adults with kids around the same age as my kids, because that's pretty much the only time you get to socialize with other adults.
The secret is: hang out with people younger than yourself and/or get involved in a scene. I'm a musician so I just went to shows or met people at mine. It doesn't have to be that though, I also joined a volleyball team and while I stunk up the joint, I also got to meet a bunch of cool people. Really most friendships are based on proximity and common interest, so if you're into movies, go to movie festivals or special showings. Go to meetups, get involved in a political campaign (if you're political).
That’s my experience and advice too. I just naturally find friends that are on average 15 years younger than me. I’m early 50s and most friends are mid-30s. Working at a university for years sort of established that pattern and it has remained even though i went corporate.
I mean, have you met US Americans in their 50s? For me it’s the lack of imagination they tend to exhibit. I’m a perpetual child myself, no kids, no plans or desire for any. Younger friends have interests and dreams, still. I do too!
I find the quiet desperation that oozes from people in my age cohort to be off putting. If you are desperate, stop being quiet about it!
Having younger friends keeps me optimistic because younger generations seem to have looked behind the curtain and have partially deconstructed the illusions we are ruled by. Maybe there’s hope?
There's a Rancid lyric that stuck with me:
"Some grow up, and some grow old"
I grew old.