This is one of those things that most people do wrong and just aren't comfortable doing it the correct way. I tried to get my mother to setup her mirrors correctly but she just puts them back to an improper setup. For some reason people can't get past not being able to see the side of their own vehicle in their side mirrors. They think they need this reference point. Drivers education should really be pushing this so at least new drivers will setup their mirrors correctly.
This is so true. I was fortunate to learn about the technique described in the article when I learned to drive in high school and have used it for the past 25 years. However, I've completely failed to ever convince anyone else that this is the right way to do it. I've mainly tried it with people I shared a car with, first my parents and later my wife. They are so insistent on wanting to see the side of the car, but can't explain why that matters. My only hope is to indoctrinate my children when they start driving.
