So by this logic, the girls who develop breasts at age 10 (that's probably normal these days, I'm thinking of the early ones when I was a kid) should be accelerated a couple of years so that they will fit in. (I'm not sure exactly how they would identify boys who needed skipping, and I'm pretty sure I don't want to know.) So then what would happen when they weren't old enough to drive with the rest of the class? These social factors are so very slippery.
As for the actual article that started this thread, I would have to ask Ms. Pyke just what she would consider to be "his peers". Yes, children do well when learning with their peers--the problem is that her definition is strictly age-based.
