Well, this is a little bit extreme But then, I'm guessing you've never driven anything but an automatic vehicle? Left foot braking isn't always appropriate when you're driving a manual as you might need to change down while braking at times. So in that case, you learn to heel-toe! In fact, the worst thing is learning to left-foot brake when you're so used to stomping on a clutch. It is... exciting for surprisingly brief momentsBut then again, I'm still angry at the people who first taught me to drive using my right foot on the brake, instead of left-foot braking. Idiots. Same dumb ones who said 10-2.
Also, there isn't actually anything wrong with 10-2 (I'm assuming you're talking about the steering wheel). Take it from somebody who spent years doing 700-1000km per week, and now also has a truck license.