Most people live in tiny compartments ... dormitory-style rooms that adhere to the WEF guidelines for satisfying "Human Needs". About 120 square-feet per person with no kitchen or bathroom (or plumbing) ... but at least it is a room, with a door.
I'm sad to say that reality is already racing ahead and even compartments are too extravagant. There is a growing Sleep-Pod-Living movement in California. Here's an example in San Francisco. For only $675/month you can share a 3 bath "apartment" with 13 other people. The Democratic Socialist World Order is already here. YAY!!
California leads the way and the lesson is clear. If you can't convince people to sacrifice for the Climate, then make things so absurdly expensive that they'll either leave the state or happily accept living in urban communal hives.