[oarsinsync]

Not the GP, but presumably because opting in to being a beta tester isn't something they're interested in, especially since the risks involved are less 'my app doesnt work' and more 'my life may stop working' if something goes wrong.

Note that while that risk remains true of every transportation journey you take, there is a lot of press generated when an autonomous vehicle takes a life or causes injury, which plays a part in a lot of peoples decision making.

Also note recent articles about automatic stop detection failing >50% of the time. This may or may not be relevant to AVs, but I personally would definitely not want to be in an AV that hit a child. That (theoretical) child's life is worth more than pushing driverless cars into the world before they're potentially ready.