I'm so tired of the holdback argument. Let it go. Put your concern to good use. It's not going to change. Bottom line no system is perfect.

However I struggle with the safety argument about size as related to holdbacks. If you son is ever going to play in high school they will be a part of a four year age, size and maturity difference. If you're so concerned about summer/club lacrosse, I can only imagine the confrontation you'll have with their high school coaches about it's not fair the seniors and sophomores are playing together.

Date of birth and graduation year have nothing to do with height and weight. There's no rule a 4'6" boy has to stay in fifth grade or a 6'2" boy has to be a sophomore.

If these are true concerns, find a sport where size doesn't matter for your son..... maybe chess or debate club. debate offers amazing scholarships!