Why ask us what's more important - your solution let's the government
decide for us.
Do I really need a seatbelt reminder buzzer, a sign on my exterior
mirror saying "objects may be closer than they appear", a mandatory air
bag with a little sign that says "this can kill you if it goes off"???
No I don't. US DOT doesn't do what you suggest because many US Citizens
object to being forced to do things ONLY because the government tells
them to.
BB