I think you missed the PP's point. There is club play in other sports, but none of those other sports institutionalize playing down. The only sports I can think of where an out of age sample kid plays down is in football or wrestling where the classes are weight and not pure age driven. The point that parents can be fixers to repeat and hide a boy in private schools a year behind is a lacrosse strategy, and thus far a good one. I would guess that if the recruiting rules stated nothing until junior year we'd see a lot less of that.
