I don't know why something like this gets trotted out in every self driving thread as if it's some sort of clever point. One thing being dangerous does not automatically make the shiny new alternative safer. General purpose self driving literally doesn't exist yet, and when it does it might be even less safe than human driving. Assuming that it will definitely be safer because of some highly constrained testing doesn't track, regardless of how interesting the tech is or how much money investors hope to make from it.