Wow Mel... I definitely wouldn't be holding Jack back! How clever he is!
Gabby is nowhere near doing half of those things. I think she's going to be more like me... just a middle-of-the-range type student. So I'd like to keep her back.
I'm pretty sure you can keep them back.... after all, there's that many kids that aren't ready for prep (and parents are told so by the kinder teacher AND by the PS teacher) and the recommendation is to keep them back at home for another year but a lot of parents choose not to... not in the best interest of the child imo.