And the reason for the demise of football participation is cratering at the high school level.
I don’t know how many of what would be called concussions I had growing up. Football was not the worst, winter sports, bicycling, even baseball doinks to the head were worse and much more numerous. Life lived in a physical manner leaves you with many incidents of “seeing stars”. I remember my first was standing on the down end of a 12’ plank with a log in the middle. My brother would jump on the up end, and we smaller kids would “fly”.