Self-driving cars: A solution in search of a problem

This puts the cart before the horse.   Identify the problem first.    Then you can find the solution to that problem.

Here is a problem to solve.  Drunk driving is responsible for half of the fatalities on the highways.  Can self-driving cars solve that problem?

Let's imagine what technology could do for the drunk behind the wheel.

The kind of technology that enables self-driving cars could be used to enhance driving skills.   It could correct errors that could result in accidents.  Indeed, this kind of technology could help anyone become a better driver.   Why not use this technology this way, as opposed to replacing humans altogether?