Hi HarryM1BYT,
Not looking over your shoulders when reversing is a driving test fail, that's why you are allowed to remove your seat belt on any reverse maneuver.. good observations..
If your in a van then check the back of your vehicle or ask for assistance yet no van drivers do..
You see plenty of women in 4 x 4's hammering back at supermarkets never check behind..that was my point really.