I have an opposing viewpoint. DS is PG and reading at unknown grade level (he just finished Wizard of Oz), but he happily does basic letter sounds with the rest of his Kinder class. As I see it, K is for learning social rules and making friends. Yes, he does need to be challenged at some point, but there is all the time in the world for that. He would be HORRIFIED if he were asked to leave his class and walk across to the "big kids" class and read with them.
Kinder kids still color and do silly crafts and sing songs and he enjoys all of that
If first grade turns out to be more academic and, therefore boring, we will consider accelerating him.
