DS is 2.5 and VERY obsessed with sports. He is definitely advanced at some things but it's hard to tell, compared to DD, who was reading fluently by this age. DS has a November birthday so here he's going to HAVE to be nearly six before starting K (DD was not quite 5.5). I think DS will be a big tall sporty guy who's still good at school. The extra year can only help him with the sitting and fine motor and graphomotor stuff (he does wayyyyy less art/drawing/writing than DD). But he'll fit in with most boys I think; most were six or turned six shortly into the year. If he ends up being as advanced at some things as DD is at language arts, we'll have to deal with that. But his passion now is sports so the law is actually good for him I guess!