Long shot here as the group is for retired people - any age but usually over 60.
I've joined my local one as I need to make more friends but have yet to go to a meeting/event.
I've seen photos of a lot of them in the groups and they look much older than me (ie in their 80s.)
I'm not ageist, truly, but I would have more in common with younger people in their late 50s/ early 60s.
My sister goes to a group near her (miles away) but she's 76 and says I'm too young for U3A.