You'll fit in to Polish driving superbly with that attitude!
I fit fine here, as I do in any other country, just because I passed my tests in another country I drive as the conditions dictate. I stress levels would soon mount up if I tut tuted every daft maneuver done by a car driver, people drive as they do, let them get on with it and try not to add to the problem.
I have to say again Harry, even in the UK you will be asked to blindside a vehicle onto a bay using just mirrors on any assessment drive. Doing this allows to to see the back and front without moving your head, I know in the UK a car driver follows the spot on the rear window around the curb in the test, but its not the same on other tests on larger vehicles. I see no benefit to twisting your body around, you will not have full control of the car.
Now maybe your reply is aimed at the
if I felt the need to check a blindspot
part. You will be aware of the blind-spots regarding a large vehicles and laws regards how many mirrors and what the mirrors should point at. The main mirror cluster can hide a car at a junction, great for looking back but a big blind spot at say a roundabout, so it that situation I would be checking that blind spot, perhaps you are thinking I do not care period, then you would be wrong.
I just pray you never run over a toddler or a dwarf..:)
I would see them in the mirrors and just as important if they were crossing the front I would also see them. I see then same in the center mirror as I would by looking on the window itself, then what is either side of the vehicle with the door mirrors and also view the front of the vehicle, my chances of dwarf spotting are very good. I am stunned this is not taught in the test.