First thing is that you should have good eye sight to drive your vehicle. If your eyesight is clear then make sure that the mirrors and windows are clean and mirrors are correctly positioned for clear visibility. Remove any obstacles within the vehicle if your eyesight is distracting. Don’t keep the things that will cover your rear window.
There are some spots which you can’t see from your rear windows. These spots are said to be blind spots. Check those spots before starting your vehicle by once verifying that no children are present at that spots.
Or if you are unable to find or see nothing in your rear windows, check all the four sides before starting a car by getting out from the car and walk around it, so that you don’t hit anyone. This is especially applicable in residential or store parking lots.
Plan to park the vehicles at a place where you can turn your vehicle easily. And also you can take the advice of the elders on how to back the vehicles. This will help to prevent any kind of accidents due to vehicle backing.