This has probably come up before but do you think it is taught or necessary to look over your shoulder to check blindspot when changing lanes on the motorway?
I just need to add an edit. I’m specifically referring to looking over your shoulder on a motorway. Checking mirrors and blindspot is not under question
Yes, of course! Who would switch lane without looking, that is a setup for desaster. And it is definitely taught in driving school (at least in Austria, but I guess that is quite everywhere the case) to look in both mirrors and over the shoulder.