Backup cameras are going to become critical beyond "learn to drive properly" very soon. My college aged son has literally never driven a car without a backup camera. I taught him to use his mirrors after checking the camera for obstacles the mirrors can't see but I'm sure he's already developed the habit of simply relying on the camera. I'm pretty much there and have 30+ years of driving without them.
Where I live you could fail your driver's test if you look at the rearview camera while reversing. You can glance at it before you start the manoeuvre but if you take your eyes off the road while the vehicle is in motion, you get the silent note taking.
