The general expectation is that the AD market will develop first in Asia, then come to Europe and finally to the US.
Especially in Asia (Think Bangkok, Ho Chi Minh City, Shanghai, Beijing), the traffic can be diabolical. I've sat in a car for 2 hours to do the 5 miles from the airport to my hotel in Shanghai. Fortunately, I was a passenger, so could do whatever, but as a driver, that's just a total waste of time.
Many who live in the mega-cities of Asia, and especially the 20-30-year olds can't wait to get AD and shared ownership (except maybe the taxi drivers).
European are a bit more conservative and the Americans.. well they like their cars.
Also, there will always be people who want to take a performance vehicle onto a track for the sheer enjoyment of driving. That will continue.
However it turns out, this is the future, whether we like it or not. It's going to result in reduced carbon emissions, improved use of resource and fewer deaths, so it's a no-brainer as far as legislators are concerned.