I have a kitchen, a living room and two bedrooms. I do remote work so one of the bedrooms have a double purpose as guess room and office.
I would love to have at least, another room dedicated to storage. And second room so I could have a hobby/office room and a guess room separately.
Also I would love to have a garden.
I spent a lot of time at home, between remote work and hobbies, so I would like to have a more spacious living space. The more time you spent on a place the bigger it probably needs to be.
What about people not living in cities?
Public transport for low density areas is terrible. So or you are forcing people to live in cities (where public transport can be good) or you are forcing people to endure terrible public transport.
Also forcing dietary changes on people, something as big as preventing people to eat or use animal products...
I just don't think forcing that on people would be clever. I know how I would react if anyone were to impose that way of living to me, and I can only assume that many people would react the same way. Specially if I would have to endure all that only to accommodate a growing population when we could just try to aim for a lower stable number of total human population (a number that will need to be reached regardless at some point. Infinite growth is unfeasible).