A couple of reasons I own my home (rent the land from the government annually).
  1. Principal residence where I live are free from capital gains tax, and for now normal people are very comfortable storing value in real estate.
  2. A stable residence for my family is invaluable for the development of my children. We homeschool, we garden, we own chickens, and we love where we live. I would feel uncomfortable giving someone else control over where I live.
Cheers