I entirely agree, generally.  Because, there is a caveat to my opinion where the freedom of choice concerning football's contact regimen involves children not yet adults.  I suppose one argument simulates the claim that a mother's right trumps her fetus' not-yet-born life.  The issue then becomes govt control versus the adult parent's right of choice, akin to pro boxing, MMA, NFL, etc., more than the matter with respect to immature children or fetuses.