I like this, mostly, but I'm a bit concerned about the middle part of section 9 - it seems as if this would benefit people who don't wear helmets.
It means that, if you're suing a guy who hit you (in an auto accident), you may have the money you get from it reduced if you don't wear a helmet (the thinking being that your injuries wouldn't be as severe if you had worn a helmet). It's designed to incentivize helmet-wearing.
Ah. I was thinking the guy who hit you would not have to pay as much if he had not been wearing a helmet. I'm OK with this now.