Driving without a rear window isn’t a big deal - see, for example, nearly every cargo delivery van on Earth. I have to imagine the stubborn refusal to add standard physical controls back to the cockpit has more potential for trouble than an impeded rear view. I wonder if there’s NHTSA data on this specifically for passenger cars? Maybe incidents caused by blocking the driver’s rear view (with furniture or people or w…
The rear view mirror is absolute advantage. It’s the only way to know wtf is going on right behind you.