Hold back your 5th grader, why would you even consider that. Too be better in lacrosse. This isn't football, basketball, baseball, where superstar players have a shot at making millions in a sport after college. A lax player may make 10 grand a year in the MLL. What's the upside, I don't get it. Ill tell you this, had my parents held me back in 5th grade, I would have been devastated. All my friends go to 6 th grade, I stay a 5 th grader. The reason for this isn't academic, isn't social skills, isn't being ill. The reason is lacrosse. Crazy how insane parents have become.