The rest of the world is way ahead of America (and considers itself more civilized) because they never put the toilet in the same room as the bathtub. You could have a “1 bathroom” home and still accommodate people’s urgencies, including getting out of the house in the morning. It even gives you a place to sing where others won’t be hopping from foot to foot outside.
More recently, Europe and other modern countries have followed America’s lead … from multiple unified bathrooms to oversize supermarkets to expressways replacing railroads. Regrettable, I’d say.
Here in the northeast, cities are still cramped, and multi-bathroom houses or apts (where single-bath ones used to be) are too expensive for most folks. But if you go to the fringes of the suburbs, even inexpensive housing will have 2 bathrooms if it’s less than 25-50 years old.