If I think I saw children run around between cars on the parking lane, are the parents probably morons? Yes. Do I slow down and be prepare to slam the brakes in case a child suddenly runs in front of me? Ab-so-lute-ly.

Even if people behave idiotically on the street, it is obviously still my fault if I run them over.

And that's what I'm talking about. Computers aren't all that good at determining whether or not a person is going to jump into the street.