And it's not just concussions, Mike. It's the constant collisions. Not only does CTE become applicable but dementia, Alzheimer's, depression, suicidal tendencies, etc. Fully 20% of all HS players have been documented with future impact and this doesn't include the lifetime injuries to the back and joints that will only worsen over time.
I've also noted a number of class action suits against Colleges. No conclusions I can find yet but most have to do with not properly informing players that 50% of them will suffer from some form of CTE.
Look at the rule changes in the NFL. The ones coming this year and the ones still to come. Not for player safety, as they profess, but to avoid litigation. Colleges and HS just cannot afford the expense of a fight they cannot win. That's why it will happen Mike. We both love the purity of the game, especially at the HS level, but the change is inevitable. IMO.