I strongly disagree. Most machines are not capable of killing you because it makes a mistake.
Do you have an example of something humans did that could kill them that was automated completely that still can kill them, but generally does not anymore? An elevator is one example, but in the case of an elevator its a very bounded problem to solve, and even still hundreds die for unnecessary elevator deaths yearly.
Not to mention an elevator is not an entropic environment. A full self driving car would have to be able to deal with ice suddenly falling on the ground, people crashing around them, etc.