I can't speak to schools here, but I can tell you about some personal experience. My sister and I both skipped grades (she was a late birthday and skipped K, making her the same age as her peers, while I was a summer birthday and skipped 3rd grade, making me the youngest of my peers) and were in gifted classes. We both did great academically (she was salutatorian in her graduating class) and socially, but I will say that as a child I physically felt very intimidated going from 3rd to 4th grade. The kids were just SO MUCH BIGGER. But I got over it quickly and really enjoyed being the youngest in my class, and I don't think it impacted my emotional maturity. My sister didn't have the same feeling of intimidation because she was much younger when she skipped. The only other kid I know who skipped a grade was socially awkward but extremely intelligent and went on to an exclusive dual credit program and is some kind of highly specialized doctor now. I think it really just depends on your child. You know where his maturity is at. If you think he is emotionally and socially ready, has the intelligence to skip, and WANTS to, I'd say go for it.