that your mirrors complement the view from your rearview mirror and your direct vision.
AAA’s guidance uses a similar approach: put your head near the driver’s-side window and adjust the left mirror until the side of the car is just visible; for the passenger mirror, move your head toward the center of the vehicle and make the corresponding adjustment.
That tiny bit of vehicle isn’t necessarily a mistake.
It’s part of the traditional setup.
Which means I don’t have to completely rewrite my understanding of driving.
That’s comforting.