Whoopsy:
 

A dog is chasing a cat. Human eyes can see the dog running from the left driveway heading toward the road, autopilot can't, it can only see the dog when it reaches the road and gets into it's field of view before reacting to the incident. Same with children, football, whatever. 

When my father was teaching me how to drive he told me: If you ever see a ball on the road stop immediately, chances are a child is coming after it.