Earlier quoted context omitted.
Yeah, that is big one. Perhaps we need to rethink housing. Shared restrooms, bathrooms, and kitchens. Keep the same restrooms on every floor. A gym with individual showers and a food court on specific floors.
What will distinguish these structures from slums in 10 or 20 years?
The neighbourhood. When I moved to New York in my twenties, I had roommates. Everyone had roommates. That meant sharing a bathroom and kitchen. Not only did this breed camaraderie and teach me to not be a dick, it also freed up cash so I could enjoy the city and save.