I guess my T is in his late 50s or early 60s. When I decided I wanted a T I specified that he had to be male (a friend of mine IRL who is a psychologist was helping me find someone). She asked if I wanted someone older or my own age. I thought about it a long time and said I probably wanted someone older but
definitely not younger -- ideally, at least 10 years older. My T is probably more like 20 years older, and it's perfect that way. I just tend to think people around my own age probably don't know enough. I'll probably still feel that way 20 years from now. Eventually I'll need a T who's around 100.

Hopefully it'll be the same T.....
Sidony