Being involved in various sports through my life I can't help but notice that there are two kinds of people in the world.

The people that (when they fall) roll,tuck,and protect themselves and their head.

The people (when they fall) that go into the ground like a lawn dart head first, no matter what causes them to fall or how high off the ground they are.
These people should always wear a helmet and other body protection no mater what they do.

I know how to fall and I train people how to properly fall.
Most people use avoidance as a primary defense to falling and I prepare to fall.