Ultimately, because it's not the will of the people.

I wouldn't want the government to start building whole company towns of people living in efficiency apartments, I'd rather work in solving the actual root causes than just treating symptoms.

Increase wages, increase benefits, and give the people the ability to own their own housing to invest in and build generational wealth. Those are the bigger-picture things I think the government should be working on, rather than getting into micromanaging individual housing units. People are smart and can take care of themselves if they're given the proper tools.