When do you think ALL humans could stop using their wheel cars and use hovercars? "2nd Industrial Revolution?"

Question

When do you think ALL humans could stop using their wheel cars and use hovercars? "2nd Industrial Revolution?"

Answer 1

when they can actually perfect it, and it becomes safe to drive, then goodbye 4 wheel tires... other than that, can you imagine your car braking down in midair?

Answer 2

Hovercars are nowhere near as efficient as conventional automobiles (which aren't particularly efficient themselves).

Answer 3

Never