I'm no proponent of the nanny state, but there is something to be said for standards. It's important that any driver be able to drive any car. Otherwise, a driv

I'm no proponent of the nanny state, but there is something to be said for standards. It's important that any driver be able to drive any car. Otherwise, a driver used to 1:1 mirrors who rented or borrowed a car with convex mirrors would underestimate the speed and distance of cars passing him.