At preschool and preK ages, we did very very well with a play-based education and working on social skills only. It was when we went to regular kindergarten (very academic, very little play) and especially 1st grade, that we ran into problems. If I could go back and make the school do what I wanted (and I know now is best) I would have still done play-based pre-K, half day kindergarten and then skipped 1st.

Good luck!