The discussion should not be whether it is good or bad, you shoudl or shouldn't wear a helmet or a seat belt, but rather do you want that choice or not.

I dont ride without a helmet. I don't drive without my seatbelt on. However, it should be my choice, not goverment mandated.

Laws should be in place for public safety, not individual safety. For example drunk driving laws. They protect others from getting hurt. Not wearing a helmet or a seat belt does not prevent others from getting hurt. They do not prevent accidents.

Soren