Yeah sure there are a lot of people who shouldn't be driving who can't even walk straight, but... I could go on and on. If people are too stupid to drive or pay attention anymore and wish to rely on computers in the future to do all our thinking for us we've reached a very sorry point in our evolution.
I may be an old fart, but these contraptions seem, dangerous to me. I'm predicting they'll never replace human drivers.
If they do, heaven help us if we become so stupid as to not being able to make our own judgments on the road or with anything else for that matter.