/johnny
Other than wasting money, these studies would be okay if they were just used to guide parents in their choices. But of course it will become a law.
Like with the front airbag thing - an awareness of the damage they can do is good to know. But when my 11 year old was almost as big as mom.....
I recall passing the time away with my buddy playing with hotwheels in the back end of the station wagon on long trips! Although my kids were always content in their car seats not knowing anything else.