Harbin: Game of Doors

I don't know what the rest of China is like, but in Harbin malls are into having lots and lots of doors. They're also into locking all but one set of these doors so that people have to push and shove past each other to get in and out. In winter big cloth panels are added to make the game even more fun. (And presumably to keep heat in. Not sure how effective they are at that, but the panels certainly help to spread various germs and diseases about as they wipe all over the people trying to pass through them.) One would think that if the malls only wanted a couple of doors to work that they would just change the designs to only have two small sets of doors at each entrance, but maybe I'm wrong in thinking that doors are for walking through. Perhaps doors are purely decorative, and only occasional functional? That certainly seems to be the case here in the Ice City!