How do we know the old lady was behaving properly? I have seen more elders than I care to count who seem to be dedicating all of their remaining brain capacity to taking the next step, paying no heed whatsoever to what is going on around them. They can walk right in front of a bicycle coming from the right. I can adjust my biking correctly to avoid contact with such hazardous geezers but can you expect a four years old to be capable of judging the behavior of adults?