I had a realization recently that with driverless cars becoming more common that one day I'm going to be stuck in traffic surrounded by dozens of other cars that are completely empty. They'll just be going to pick up a human driver somewhere or going to park and no one will care because instead of eliminating traffic we'll just ensure humans are entertained while stuck in it.
Why bother to fix traffic congestion if you can just play PlayStation the whole time or whatever?
What you mean a bunch of bells and chimes and warning lights happening every time the road markings are ambiguous isn't helpful?