In my years of nursing , I had at least 3 young men with head injuries from bike riding without a helmet. They were vegetables in wheel chairs. The suffering their friends and family went through for years were painful to see. The financial hardships their injuries caused were never totally covered by insurance. When working as a cop in the 70's , seatbelts were not required by law. I saw several deaths where the victims did not wear a seatbelt , but not one where they had they had buckled up. The myths and reasons given to not wear seatbelts seem pretty stupid when you see someone's blood and guts all over the highway because they wanted their freedom.