It's more than that though, where do you bathe in an office?

I'm not saying it can't be done, but it's a lot of work to redo the plumbing, electrical, install kitchens, and seal those spaces into secure private zones with natural light exposure.

What I hear is mostly water pipes. Commercial buildings have them concentrated in bathrooms and hard to split for each residence.

I know there are bathroom less really cheap places but that attract type of people which property management/urban development corps dont want so they may also be reluctant for that change.