One point you're missing: Daredevil sports are entirely self-inflicted. Football is about inflicting hurt on others. Second point: There's no incentive to hurt

One point you're missing: Daredevil sports are entirely self-inflicted. Football is about inflicting hurt on others. Second point: There's no incentive to hurt yourself. You're not going to be better paid because you fell off a cliff. You're sure better paid because you can take hits and still create a few extra inches in football. Third point: Daredevil sports don't have long-term risks. (Well, not entirely true - IIRC arthritis is a big thing for climbers who survive) Fourth point: We groom football players throughout school. I'm not sure the equivalency holds.