Since I moved to a new town, I thought I'd search out some meet-up groups and found a vegan group that meets monthly for a potluck. We met on Saturday, and enjoyed some good food and conversation. Seven adults attended plus one child--two omnivores (including my DH), three vegetarians and three vegans. The food was all vegan. While we were the oldest there, there was a couple probably in their mid-forties, and the others were in their late 30s. I was kind of surprised not to see 20-somethings, but maybe they have better things to do on a Saturday night.
One of the reasons I joined that group was to get new recipe ideas, restaurant ideas and shopping tips. And I did. I discovered that the warehouse-type grocery store I shop at actually carries tofu, milk alternatives and some other meatless selections as well as bulk grains. It doesn't carry quinoa, however.
Anyway, if you're looking to meet some like-minded people and enjoy some good food (I made the lemon coconut bundt cake to rave reviews), consider starting a meet-up group in your area or checking to see if there is already one in place.