I think the biggest factor is knowing how to fall, and I'm glad they included it, although I wish it was at the top because in my experience it's so important,

I think the biggest factor is knowing how to fall, and I'm glad they included it, although I wish it was at the top because in my experience it's so important, and potentially applies to any situation in life where accidents can happen, not just when you're padded up for action sports. Of course, knowing how fall comes with a strong intuition about when you're going too fast to manage a fall without serious injury. How fast is too fast is particular to the individual and their experience.