I think it would be very very rare for me to see a therapist my age or even a couple of years older, lol.

But my current T is about 10 years older than me and that works perfectly. She is old enough to be a good adult and young enough to relate to. She's also kind of old-timey in some ways which I can be like as well. Personally, I wouldn't want a T that was way older, it would feel parental.