May as well make motorcycles, bicycles, automobiles, skateboards and anything else that moves illegal.
I have never played a single down of organized football, but I have suffered atleast half a dozen concussions. I played a lot of park football and only recieved 1 concussion from that as far as I know lol, mainly because with no helmet I tried to protect my head. I'm sure I recieved at least 3 just from car accidents before my 20th birthday, so should it be considered child abuse to let your teenage child drive or ride in a motor vehicle, after all that is the leading cause of death for teens. Should bicycles be banned? I've recieved at least 1 concussion probably more from crashing my BMX bicycle as a young teen, as did many of my friends at the time. Should it be considered child abuse to teach your son to stand up against bullies? I'm sure I've recieved a concussion or 2 from fist fights, that I did not start, but did finish.
Short of wrapping your child in bubble wrap and never letting them leave the house there is no way to prevent all concussions or worse.
Studies can be made to prove whatever point the person doing the study wants it to prove. All 111 brains that were studied came from players that they or their families believed they had CTE, that is like saying that 110 of 111 people that went to the dentist because their tooth hurt had 1 or more cavities.
Teaching young football players to tackle with their shoulder while targeting the body below the neck and above the knees sounds like a better option, or as has been mentioned before get rid of the helmets. Youth leagues have already made great strides in reducing neck injuries through proper training. Has any Dr done a study relating to concussions in rugby? The collisions arent as violent as NFL football, but that probably has something to do with the lack of helmets and pads.