I believe football has a shelf life and won't be around in 100 years. Soccer will be. Marshawn Kneeland, a 24 year old player for the Cowboys died last year after a 160 MPH police chase. He ended up shooting himself in the head.
Just recently his brain had been studied. He had stage one of CTE. I am not sure I want my son to play football when he is old enough. The sport, as much as I love it, is dangerous. With more knowledge, parents are steering their kids to safer sports. Perhaps America will be a soccer nation in due time.