That's the way it has always been explained to me. Less injuries = less premiums. And it's not just cars. Bike helmets (for eg.) = less of a drain on health care costs.
So is that BS? I've never considered that, because it made sense to me.
But maybe a paralell can be drawn with taxation. One thing I know about new taxes, fees, or whatever... is that they never go away. Once the initial reason for the tax is satiated, there will always be something new to fill the void and require the continuance of that tax.
Back to insurance companies. Less injuries means less payouts. We know their motives. So the question is (and is being asked here already):
Do the insurance companies just soak up the profits from less payouts, or do the rates fairly reflect our taking measures to protect ourselves?
I guess at this point, really, we're gonna need numbers.