Philosophical Question:

In this month's (May) issue of SLAP Magazine, a skateboarding publication, there is an article on p.12 that is worth considering. It is a short piece that simply asks:

Why is it acceptable, even commendable, to receive injuries in school sports? Why is it Okay for my young friend Cliff to blow out his Knee in football? Nobody minded.

And in juxtaposition:

Why is it so unacceptable, almost universally condemned, to receive injuries while skateboarding?

Please comment.