> Perfect is the enemy of good, and rejecting a better system because it isn't perfect seems like an absurd choice.
Nothing absurd about thinking a system which has parity with the average human driver is too risky to buy unless you consider yourself to be below average at driving. (As it is, most people consider themselves to be better than average drivers, and some of them are even right!) The accident statistics that comprise the "average human accident rate" are also disproportionately caused by humans you'd try to discourage from driving in those circumstances...
Another very obvious problem is that an automated system which kills at the same rate per mile as an average human drivers will tend to be driven a lot more because no effort (and probably replace better-than-average commercial drivers long before teenagers and occasional-but-disproportionately-deadly drivers can afford it).
Nothing absurd about thinking a system which has parity with the average human driver is too risky to buy unless you consider yourself to be below average at driving. (As it is, most people consider themselves to be better than average drivers, and some of them are even right!) The accident statistics that comprise the "average human accident rate" are also disproportionately caused by humans you'd try to discourage from driving in those circumstances...
Another very obvious problem is that an automated system which kills at the same rate per mile as an average human drivers will tend to be driven a lot more because no effort (and probably replace better-than-average commercial drivers long before teenagers and occasional-but-disproportionately-deadly drivers can afford it).