In my last 20 sessions the youngest Domme was 40 at the time. Even when I was considerably younger I had some problems with Dommes under 30. Unlike Swordfish I have no desire to train novice Dommes. Teaching an experienced Domina one or two unusual tricks I have picked up can be fun though.

As for intelligence I think there is a certain amount that is needed to carry out a satisfying conservation but I would not categorize myself as sapiosexual.