[Piwoslaw]

Let's be fair: if we teach eco-driving, then wasteful, floor-it style driving should also be taught. We can't tell others how to drive, it's their decision. All driving styles should be equal, the people who want to learn how to do illegal street races should not be discriminated.

Just kidding. I had to.
I don't think eco-driving should be taught as a separate course, as in "Here is how to drive, and here is how to eco-drive". Just the whole teaching process should be changed to be more eco.

On the other hand, once people start driving on their own they pick up their own style (usually: get there fast), driver's ed doesn't teach to go over the speed limit or to tailgate, yet most drivers do.