I've been taking my son to climb rock climbing walls for quite a while now and we finally took the plunge and joined a local youth recreational climbing team. He seems to be enjoying it and, with competent instruction, is learning technique and patience under stress - important skills for climbing and life.
I spend most of my time watching, occasionally lending a hand belaying, and wishing that I could instantly drop 40 pounds to scamper up the walls (and then gain it back again for lifting). Good times, good times. Not cheap, but good times.