I understand your angle. We got started RVing at about the same age.
You have to account for the amount of (disposable)money this hobby involves, mixed in with an age group that may still be settling into careers, mixed in with the prime age for starting/establishing young families, and yes...that dang recession that was especially tough on your age bracket as well.
We only had one couple we were friends with that also camped when we started. We've gone on many trips together and loved it. Along the road we've exposed many other friends. One couple just bought their first pop-up last week. Also some friends of friends are getting into it, so here now we find ourselves with several camping buddies. We don't do everything together, it's still fun to go it alone, but those group trips are a blast to.
Just go out and enjoy yourselves. You'll make a few converts, and you'll make some new friends.