Sounds nice in theory, but I've never once been involved in a bike accident that was caused to any degree by my helmet, and I've been unvolved in two accidents that weren't of my doing (or even avoidable), both of which destroyed my helmets.
Accidents, by definition, aren't entirely avoidable.
I'm not for helmet laws, but let's be reasonable about the benefits helmets provide, with very little downside.
