The Case Against Bumper Guards- Bumper Diapers?

These ungainly plastic diapers go by different names and they’re all over the ass ends of cars in New York City. But why?
This I had not remembered from previous trip to the United States

These ungainly plastic diapers go by different names and they’re all over the ass ends of cars in New York City. But why?
This I had not remembered from previous trip to the United States