Any more, I think they are there to keep you in position so the airbags don't kill you.
I have known nine people who died with them on, in three separate accidents. Five were wearing their belts when the vehicles came to rest inverted, and could not get out of them, the others went underneath a semi trailer.
Of the five, four burned to death in the vehicle.
Please consider something, folks.
Your weight on that little bar in the latch means (depending on your size) that if inverted, you will have to release a latch with anywhere from 400 to 1000 psi on it (not much more and maybe less than 1/4 square inch of surface area there), and release it with a thumb or finger.
Carry something you will be able to locate, reach, and use to cut the belt.
Use them if you want, but I do not agree with the imposition of a law. It is a poster child for nanny statism, and was one of the camel's noses under the tent.
Do I have this right?