The red-shirters we know are about equally split between people who's motives I agree with (neighbor with 4 year old, academically nearly ready but unable to even manage preschool emotionally/socially) and people I don't (sportsy parent of 2 year old who says mid-year birthday boy is not going til 6, irrespective of his academic and social readiness).

But perhaps single age classrooms are just a blip on the history of education anyways? Seems like prior to 70 or 80 years ago most US kids would have been small town or rural living and would have gone to small elementary schools where progression was all based on skill and content mastery, not on age. If not for sports it seems like a return to that wouldn't be all that bad. Perhaps what the US needs is a separation of sports and state.

Polly