And like any responsible parents, they presumably also don't just defer to what they're elementary aged children "want to do with their life" nor feed into the exaggeration that "everybody else" does anything at all, let alone play tackle football.
If you disagree with the dangers of the sport or are afraid of shaping your children's life choices for their own benefit, that's fine for you, but the rhetorical and snide way you presume others should share that view seems strange.
This is the only wise position. Despite the common and misleading film tropes, children do not know themselves perfectly. Often the adults "holding them back" are doing those children a great favor.
The correct thing to do is to ban tackle football below a certain age. Probably college. That levels the playing field.
Sorry about the misread!
And different sports have different safety concerns.
Distance running is known to cause increase chance of cardiac arrest.
How about gymnastics, some of those dismounts are pretty dangerous
Why single out one of them
It's singled out because it's the single sport that appears to lead to life-altering effects from invisible injuries, rather than an acceptable cost/risk of accidental injury or increased chance of extremely rare events in other sports. They are open for debate just the same if evidence comes to light.
The real question is why you believe your personal experience has any bearing on the facts presented, to the point of farcical argument. It's a shame that anything we enjoy may later turn out to be harmful, but you are arguing the equivalent of: "I smoked all my life and I'm fine", "but red meat gives you cancer too", "why are you targeting smoking when people drink", "people have died choking on air".