As an EMT, I've seen what happens when people don't wear seatbelts. And I can tell you, that alone is enough to make me, although common sense always kicks in before that. There was lady near here that died in a 15mph accident in a parking lot... she wasn't wearing a seatbelt, got hit by another car she didn't see, fell halfway out of the sunroof, and got her head crushed when the car tipped over (SUV).
