When I started playing again several years ago I felt I couldn't say no to any band offer. So, I ended up in stuff I really hated...and in loads of stuff that just didn't last.
After the best band I'd been in folded, that was it, I became incredibly picky. Several former band mates asked me to form or join stuff and I point blank refused. I'm now in an originals band (I'm in my mid 40's) and I'm, musically, much happier. There's no money in it, but then I never seemed to get anything from playing covers to be honest, and now I only play for 45mins rather than 2hours
I know of a bass player local to me, he's very good, way better than me, previously signed artist etc etc, he can't get a band together for love nor money. He's been trying to get a funk, soul thing started up and he's had no luck at all. I suppose it falls outside the staple diet of folk or rock and pop covers that musos around this way seem to head for.