Not quite. Teaching counts too, with the the end result of a good tutor being that they're not needed any more (same with a college or university).Quicker you pass say your driving test, the less money the instructor makes.
> Quicker you pass say your driving test, the less money the instructor makes
Only if people never recommend driving instructors to friends and family. If they do, a driving instructor who consistently has people passing their test quickly is much more likely to make more money long term