You're describing a utopia where outcomes are perfectly predictable, which is silly.
"And roads should be without any defect, weather should never happen, pedestrians and other drivers should always behave rationally, and black ice is not legally allowed to exist."
Exactly. The real world that real people have to drive in is far, far more complex than these sloppy machines could ever know. The map is not the territory.
"And roads should be without any defect, weather should never happen, pedestrians and other drivers should always behave rationally, and black ice is not legally allowed to exist."