You can't be serious or your driving a car 20 years old . Today's cars have airbags . The newer ones even  have side airbags as well .  Today's braking systems stop on a dime---and some even stop if the car senses another car in front of it.  So , why do we allow motorcycle riders to ride without helmets ?  Because those in position of power listen to those who want to ride free.  They feel it's the ultimate freedom issue . That's why motorcycle riders are allowed to get away with this insanity.