Many teenagers are eager to drive while many fear it and shun the training. As in all things, it really comes down to the individual. What many fear, they decide they immediately dislike.
Encouragement is a good word, because it is exactly as it implies: Encouragement.
Uplifting with confidence boosters usually go much further than snideness, as we all know.
Once of the things I have learned on this forum, at least.
I also firmly believe in a Lack of Dumb. I have noticed over the years that like many things society teaches us early on but doesn't actually exist - dumbness is one of them.
What people lack sometimes is not smarts, but confidence.
And this is something pretty easy to observe. You may notice, if you test the idea, that many people you may have thought were incapable become capable once they are uplifted and encouraged.
And it is good training over-all; for Life. As you get used to the habit, co-workers, spouses, significant others, family - all tend to respond better to you.
You asked; though from what I have noticed of your posts- you hardly need the explanation...