Probably not. There's a more practical reason in most big stores: the shelves where the dairy items are displayed are the front wall of a refrigerated room. Thi

Probably not. There's a more practical reason in most big stores: the shelves where the dairy items are displayed are the front wall of a refrigerated room. This way the product can be placed directly from behind, and never taken out of the cold. And in a store where the cases are stocked from the front, they need to be up against some wall so that they have access to electrical outlets (and maybe drainage for the compressors, depending on the nature of the case).