At this time, ALL self driving cars are legally presented as “assisted driving”, where the human in the driver’s seat MUST be ready & able to take full control at a moment’s notice. Likely won’t start moving with an empty driver’s seat. Ergo, not a cab for drunks.
Tesla cites a statistic where their auto-drive cars have fewer accidents than human-driven cars, so their contention is that auto-drive cars are safer then human-driven cars.
While this may or may not be true, a huge percentage of the human-driven accidents. So it is probably more accurate to say that the Tesla system drives safer than you do when you’re drunk.