How about you let him choose where he wants to go. (Score 1)

And who says that you have to be presentable and have perfectly combed hair, clearly Einstein himself had some degree of difficulty in locating a comb. My suggestion is to let him be, and give him the stimulation he craves, many creative types are introverted, and it's generally an accepted added ingredient with greatness, don't send him to karate, why not just let him do what "He" wants to do. Chances are, he's probably intellectually decades ahead of his peers. (No-one in my coding group appears to know how to use an Iron or a Comb).