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.