I live in the US and they're not available. Also I'm reluctant to buy anything with cameras and an internet connection from China as long as the CCP is in charge.
Until self-driving tech is good enough that you can safely not have a human behind the wheel it isn't really anything other than a toy.
As soon as you can remove humans from the equation you can have automated trucks, without even the capacity for a human driver, that's where the real future is, not in owned vehicles that will always have, by definition, a driver in them anyway.