Yes, until cars talk to each other ("Hey, I'm in this lane, don't change lanes into me..."), and of course the Trolley Car problem gets solved (which it won't) this will still be beta. It is very impressive at times having the car drive to a destination 20 miles away, making 50 turns, stopping at stop signs, stop lights, merging onto the highway, etc... But it still makes some mistakes on most drives.

The WSJ recently said that the average age of a car in the US is 12.5 years, and having cars over 200,000 miles is commonplace. In that context, it will be quite a long time until most of this happens. The majority of cars on the road talking to each other: >20 years would be my guess.