Have kids and use a stroller? Old and use a walker? Blind and use a cane? Walk and don't look where you put your feet?

Slip and fall are a major cause of death, only second in accidental deaths after motor vehicles. It brings 8M americans to the emergency room every year. In San Francisco, a whole department has been created only to litigate Slips and Falls.

So yes, I'm glad the city prevented my grandmother from tripping on such a thing.