As per driving lessons, the driver driving reverse has to put his/her hand behind the head of non-driving seat and look back BEFORE changing to the reverse gear.
I wonder why don’t they keep the reverse gear right there at the head of non-driving seat? Or, if it is too inconvenient from transmission point of view, why don’t they keep an “enable-the-reverse-transmission” switch there?
The idea is, unless you move your hand to appropriate position, THE CAR WON’T GO INTO THE REVERSE GEAR. PERIOD.