Kids aren't made from cookie cutters. Home schooling is good for some kids.
Home schooling is inappropriate for other kids.
Anything that would let him avoid having to deal with his peers. Those are both important lessons and have big payoffs in the long run and in the real world. No one ever told me that that was what was important about school, and it's had major effects on the way I've never learned how to deal well with typical work situations. Anything else, a bright kid can learn by themselves, from asking questions, paying attention, and reading books. The error that parents make is they think that kids are going to get fundamental knowledge from public schooling.