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In the Nordics (SE, FI, NO, DK) it is pretty much the same. A large part of the year your shoes are a mess and you don’t want that indoors.
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When I worked in Helsinki, it was quite common to see people do this in the office as well. Some people that were otherwise appropriately dressed (business casual) would be walking around on slippers. Always thought that was slightly funny. Very practical though. I had some rugged hiking boots that I wore in the winter there that definitely would come off when I got to work.
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I've been in small offices where having slippers wasn't mandatory, but everyone brought them just because they were more comfortable. Also in one where taking your shoes off or using those medical plastic covers was mandatory (in spite of the work being IT).

Romania. Typing this at the office, wearing slippers :)

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Yeah! Same for finland, the baltic states, or poland, or russia, or any country really where there is any kind of serious winter happening.
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Eastern Europe is the same. I've only been in one house one time in the US where it was shoes off. It just felt wrong even though it wasn't carpeted and there were no rugs
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