It depends what you define as a "test". It's like how for Covid vaccines, antivaxxers were claiming that vaccines were still being tested on people despite it getting past phase 1, 2 and 3. At what point do you consider something to be "safe enough".
My point is that Waymo has done plenty of testing already. The question is, where do you draw the line? Are cars ever "done" being tested? Just like with drugs, you never know all the side effects for 100%, you can only make the error bar smaller and smaller, but eventually you have to distribute it to the public.
Same with the car, at some point they will eventually have to drive on public road. By your logic, they would never reach that threshold since they're still "testing" it.
My point is that Waymo has done plenty of testing already. The question is, where do you draw the line? Are cars ever "done" being tested? Just like with drugs, you never know all the side effects for 100%, you can only make the error bar smaller and smaller, but eventually you have to distribute it to the public.
Same with the car, at some point they will eventually have to drive on public road. By your logic, they would never reach that threshold since they're still "testing" it.