I must be too. I'm in my 50's and would no sooner go to the therapist in their 20's or 30's if you paid me. It isn't so much about age as it is about life experience -- having a common starting point of experience. I also prefer a therapist who has been married (whether they still are or not doesn't matter to me) and has children (preferably old enough that as parents they've seen them through at least a good portion of adolescence -- this why a young therapist wouldn't work for me). I don't think needing your therapist to have some sort of common starting point isn't "ist" anything. Seems pretty natural.