It seems to be something that must be taught at an early age. I have a friend who never wears a seatbelt unless his son is around and he only does it then to avoid the wrath of his wife. He was never told to wear one as a child but it was strongly enforced in his wifes family. He loves his son very much and it's obvious but he just can't seem to make it important for himself. Because of his wife's persistence and his love for his son I've noticed that it has become second nature to the young boy. He seems to buckle up without giving a thought as to why it is so important. You probably can't understand because it is so obvious to you but for others, it is not so obvious. I always enjoy watching the boy hop in the car and strap up before so much as a word. It's a testimonial to good parenting and how a little persistence goes a long way. Perhaps instead of trying to understand why others don't wear them, you should just continue wearing yours as you have whilst encouraging those around you to do the same. They will find it strange that you, a stranger, place more importance on their life than they do. One day when you're long gone and a young boy's life is saved by a seatbelt you encouraged him to wear, PRESTO, you'll be immortal.
Exzackly