Rec league is NOT that way here. You have to try out for rec league, and there is no guantee you will ever play. It is extremely competitve. Those leagues are based on age. Our school sports are supposed to be where everyone gets some playing time and learning experience, and they are organized by grade level. We don't play sports, so it really doesn't matter to us. Our dance classes are organized by ability rather than age. I was just saying that I couls see how a parent in that situation would be upset.
But a parent with a kid who isn't athletic is going to be upset, if there aren't non-competitive options. Or the ones that are smaller. It isn't simply an age thing. There are ALWAYS going to be upset parents (and kids) in competitive sports. And if that's too hard for parents or the kids, do something non-competitive - something where you advance based on ability, not age, or something that you just do for fun.