Oh yes, quite - and I'm not even questioning if reducing backing accidents isn't a noble goal, it is - I'm just questioning is this the most cost effective way

Oh yes, quite - and I'm not even questioning if reducing backing accidents isn't a noble goal, it is - I'm just questioning is this the most cost effective way of going about it is all. Improved tires, and mandatory seatbelts (as in included with the car) since the 50's have probably saved more lives than airbags however, as until recently airbags were only helpful for a very specific kind of collision.