What a pity if people found their first experiences of u3a unfriendly. It is worth while perservering.
Our town has a large u3a with well over seventy 'interest' groups that met regularly (weekly/ fortnightly /monthly). Lots of coach outings re arranged to places of interst and theatres and holidays.
We have a weekly coffee morning, where, in a separate room there is a Meet & Greet table for people wanting to find out more about us. That is all fine, but often when new comers go into the main room they say it is 'clicky'. Obviously, people do tend to sit with the same people at the tables and it can be a little difficult for a 'newbie' to join in. Now the Meeter and Greeter, takes that new memebers and introduces them to a table.
Most groups welcome new members, but if a group meets in a small space (eg Leaders front room), then there has to be a limit on numbers and,therefore, a waiting list..
Arriving in Weston super Mare five years ago, knowing no-one except my daughter here, u3a has been a lifeline, Just gone on main committee as I hope to be able to return to u3a some of what it has given to me.