This may explain why Poland doesn't seem to understand the concept of a laundromat. As a tourist, this can be quite annoying. (Hotel laundry service is usually per-piece and thus way too expensive.)
When I've lived in hotels longer than a week at a time, I've sent just collared shirts and slacks to the laundry. Everything else can be satisfactorily washed in the bathtub. One place I stayed in Tokyo had this really long shoehorn in every room, which was ideal for stirring the tub.
Yeah, plenty of people in Poland would just wash their clothes either by hand or with a really cheap washer. And dryers were rare and land was plentiful, you'd just air dry.
Not that people don't own them now, but what they own now is a straight-up upgrade from what they had before.
At this point I'm sure there will soon be a market for laundromats in Poland, at least in the more urban areas. But it'd be a hard sell for the vast majority of Polish folks.