They don't even need to be better than "the average" human. They need to be better than some subset of humans we let drive. Replace those humans with computer

They don't even need to be better than "the average" human. They need to be better than some subset of humans we let drive. Replace those humans with computers, and iterate up from there. I could see within not too long people with DUIs being restricted from self-driving. The elderly are another demographic, but there are social forces working both ways there. (AARP will reject any calls to restrict driving rights of seniors, but self-driving cars will be awesome for some seniors who just can't cut it.)