The US Lacrosse 9/1 cutoff date isn't realistic for large parts of the US. Where I live, as a practical matter all of the private schools will insist that boys with summer birthdays start school later so the true school cutoff is probably May. One tournament uses 8/1. The Warrior Worlds Series of Lacrosse is using 5/1. People will always argue any date you choose, but 9/1 isn't representative of where we are as a society. I has an October birthday and went to college when I was 17. Times change and if I had a son with an October birthday I would have him start school later than I did.
So let's not have cut offs at all and let your son play down and beat on younger kids. Problem solved!
