I don't think any toilet built here in Finland since at least the 50's (some of those still exist, earlier I'm not sure of) have needed a plunger either, those

I don't think any toilet built here in Finland since at least the 50's (some of those still exist, earlier I'm not sure of) have needed a plunger either, those things just work. The US plunger thing just baffles me. And banking too, sure.