people that are arguing about helmet laws are probably the same people arguing about smoking laws or seat belt laws.
I completely agree with these laws... the reason for it is simple.... some people are too stupid to realize that helmets / seatbelts save lives.... end of story... you can't argue facts. Do people still die wearing either? sure.... do these sometimes take lives.... ummm sure.... but they by far save more than they take.
regardless of your life being taken because you don't want to wear one, think about the other person that you might hit, (or they might accidentally hit you) think about how messed up their lives will be because you either get ejected from your car, or your brains are splattered all over their windshield....
And just think about your family.... I know that I want to see my children get married, have grand children, etc... and I want to grow old with my wife... to me that's worth having a law that is just plain common sense...
now helmets on bicycles.... I think that might be going too far.... do I have my daughter wear one? sure....