Are you aware that many in the military live in mobile homes for the same reason? (The men and women that are protecting your ass). Are you aware that many of our retired, who have worked hard all their life live in RVs that cost over 100,000 and put many homes to shame , so that they can travel? You have insulted a lot of people here.
It can be more practical to have a mobile home in some places --- areas that flood for example --- here in the areas that have flooding, those up higher in their mobile homes don't have to scrape 2 feet of mud out of their homes.