FWIW, I skipped a couple grades but that didn't help me socialize with intellectual peers, it just hindered me from socializing with regular peers. The kind of socialization you're talking about didn't happen until college.

Looking back now, what I'd do with such a kid is acknowledge what they're good at, then get them working on things they're not so good at. Nobody's good at everything, and the experience of getting frustrated and getting through it is valuable.