Exactly my point. They didn't use to be simple. Crank, choke, throttle, water in the battery, where's the next fuel repository, where are my goggles, where is the rug for my legs, etc. Now they are, and you just think of moving your body from here to there, and almost not at all about how to make your car help you do that. Now people use a car casually.
It's that kind of change, only much more profound and difficult to achieve, that will be needed before people can "program" (if we still call it that) computers casually.