In Germany round about 41% of people live alone. It's also easier to build. OTOT you probably also don't have a lot of families that optimize for these things,

In Germany round about 41% of people live alone. It's also easier to build. OTOT you probably also don't have a lot of families that optimize for these things, while single people do. I see a lot of good reasons to build this for single people first. No need to be so negative about something that apparently doesn't apply to you.