I’m not exactly a hermit (or at least I didn’t used to be, the layoff has changed that). I’d go out a lot, to bars, to shows, to various events, etc. A vast majority of the people I meet are either older than me or less commonly younger than me (I stopped going to shows when I realized I was one of the oldest people there). The times I do meet people closer to my age, they are either already paired up or not interested in a relationship.
The only place I can find a “pool” of peers is on dating apps, and I’m not going by to waste my time with those anymore.