Get over it already. If it’s unfair in your opinion why do you continue to allow your son to play in this league? There are other options.
I will say my son and several of his teammates that are of the correct age handle thier business at practice and at the games. They don’t care what the kids age is or how big the player is.
Stop giving your kid an out when he doesn’t find success. Tell him to continue to work. Go outside with him and WORK. Go to the gym with him and get stronger.
Parents need to stop getting in the car after games and telling thier kid that “it’s ok those kids are reclassed”. It’s bogus. Motivate.
