Originally Posted by
JanMM
I'm not understanding the purpose or necessity of a fake headcheck or of a headcheck that is not needed
It's a well-understood heads-up to all around you that you're going to do something -- turn, change lanes, etc.
I'm not saying that you need to do it, but there is a benefit to doing it that goes beyond merely being able to see behind you.
(And I know what you mean -- I feel naked without my mirror, but doubly so on my 'bents.)