I used to prefer young. The first T I saw was early 30s and I was 19. When my husband and I did marriage counseling we saw a T who had to be 90. I swear she kept falling asleep during our session so after 2sessions we quit. The one I see now is 70 and I absolutely love her. She has 6 kids and has great grandkids so her experience is great. She's young at heart and we really click. I think that's the most important for me.