Imagine living in a world where you don't have a "real" home? You could go to any house, put in your key, and your "home" would temporarily be there. On every single key, there would be a chip that saves the exact state of your home and uploads it to a digital "cloud". Exiting the house would save the exact details of all your items down to the tiniest scratch, and upload it to a "cloud" computer.
After a long day at work, you could simply go to any house that isn't marked as occupied, put in your key and have your home downloaded directly into the house.
But some say that homes cannot change. They have to stay in one place, be around the same houses, be in one neighbourhood, where you know everybody and have a best friend.
Moveable homes just wouldn't be the same as their static, unmovable counterparts.