I always do wear my seatbelt, and believe me I do think that seat belts save lives, but let me tell you about an experience I had. When I was 22, I was in a terrible car accident as a passenger. I was sleeping and had the belt over my lap, but not my shoulder. The driver of the car I was in, also fell asleep, rolling his car 300 yards into the desert of Nv. I was not thrown from car because of lap belt. BUT, the Dr.'s told my Mom that if I had had the seatbelt over my shoulder, I would be dead. As it was not over my shoulder I was able to slump forward, and as the roof of the car was smashed in, I did not lose my head because I was secured against the seat. This was an aweful accident and I did break my neck severly.
My point is this. Every accident is "different" and what may save lives in one accident, may kill a person in another. By the grace of god, I am ok and was saved. But the knowledge that I would be dead if wearing a shoulder harness, certainly was food for thought.
Regarding 10 year prison sentences, I can't see this law every flying for real. Our prison system is overcrowded to the max, and we can't afford to take care of the prisoners we have already. If anyone ever does spend time in prison for speeding, it will just me another case of space wasted on non-violent offenders............ Just my 2 cents.
I do wear my seat belt always, hope I am never in a accident such as this again, but as I said. Every accident is different.