That's a good question.
In terms of resistance, I have two thoughts.
First of all is infrastructure. David made the right comment that there are two different kinds of infrastructure. Physical infrastructure is one, and the first commandment over AVs, to my way of thinking, is “thou shalt have no special physical infrastructure”. AVs will have the sensors, software, and artificial intelligence to drive on the same roads as humans do. No government, no combination of governments, can afford to upgrade all of the infrastructure in time for the arrival of AVs.
The second commandment of infrastructure, as far as AVs are concerned, is that once we have enough AVs in use, we can optimize the infrastructure. There's a study out of Texas that shows—