The "already old for his grade" is the issue as you have to assess what is best for your son regarding life not just wrestling.

I will admit that our kids are having experiences stolen from them in this process and that needs to be acknowledged in a major way.

Some kids and parents across all activities will never get over it and that will be extremely sad in the long run.

Being near 20 as a high school senior is ridiculous in my opinion unless there is a significant learning disability or handicap.