Seatbelts reduced the death toll dramatically compared with no seatbelts. Airbags and seatbelts together reduce the death toll dramatically compared with just seatbelts.
In most of the world it's considered suicidal not to wear a seatbelt while in a moving vehicle.
>>taneq+(OP)
And unfortunately the US took the stance that airbag design should take into account that a seat belt will not be worn. US airbags explode with much more force and cause many more injuries than European ones.