Originally Posted by
Scrodzilla
That doesn't mean people retain it (or even give a crap). Cars are supposed to drive the speed limit and stop at stop signs too, which is also taught and tested.
If that's the argument then the same drivers are going to ignore your right arm signal.
Im not advocating a left arm right turn signal. I use left and right, point where I am going. I don't care what other people do.
That said, there is logic to using the left arm, which is that cars behind you and very close to you cannot see your right arm. This is applicable in the merging and turning situations mentioned above. You body blocks your arm.