Thanks, I hadn't thought to express it that way. It seems like most of the people optimistic about driverless cars live in the US, and are now trying to deploy

Thanks, I hadn't thought to express it that way. It seems like most of the people optimistic about driverless cars live in the US, and are now trying to deploy them in desert grid-cities like Phoenix. They should try driving almost anywhere else, where the roads have evolved over centuries to support vehicles (cars, but before that carriages) controlled by humans cooperating to get from place to place. Why build robots to operate in that environment, when you can build them their own lane?