They’re common, but A) generally make up a tiny portion of floor space (at least in the U.S., apart from rare specialty stores) and B) I would hazard a guess th

They’re common, but A) generally make up a tiny portion of floor space (at least in the U.S., apart from rare specialty stores) and B) I would hazard a guess that they are less sanitary and even less fresh on average than comparable packaged foods.