I think the premise of "bathrooms per person" is wrong, from a European standpoint, or only transitively by "square meters => probably x people in this house/ap

I think the premise of "bathrooms per person" is wrong, from a European standpoint, or only transitively by "square meters => probably x people in this house/apartment". Nearly all the people I know who have a small house in southern Germany have 1-2 "real" bathrooms, with toilet and shower/bathtub and another extra small toilet, often right at the entrance. Bigger flats of 90m2+ often have a second bathroom, it can be just a toilet, or with a shower if the main one has a bathtub. What I'm saying is.. 2 from a certain size is totally normal. 3 is rare, but possible. I've never seen 4. But the houses have 2-5 people. I simply doesn't matter, we have such small houses (in cities) that you'd have the same size house with zero children or with up to 3 children. The number of bathrooms won't change unless you add one yourself, but there are not so many spare rooms... (Bit different if one floor is walled off completely to be a separate apartment, but I guess we can ignore these). (My parents' house was right in the middle here. One proper bathroom with toilet+shower, one additional small one with just a bathtub, a very small one with just a toilet next to the entrance. And the 2nd floor was supposed to be a separate apartment, thus another smallish one with toilet+shower). But probably still 1-2 less than American houses...