Because tents alone are not enough. You need to account for sewage and sanitation, power, and all the rest of dealing with a large number of homo sapiens crammed into a small space.
The thing is as a society we have plenty of resources and could enable most people to live with at least a minimal level of stability and security. But we don't want to. We've decided that our greatest economic centers work best when they're seething rat piles with the King Rat being pulled down and replaced every so often.
The thing is as a society we have plenty of resources and could enable most people to live with at least a minimal level of stability and security. But we don't want to. We've decided that our greatest economic centers work best when they're seething rat piles with the King Rat being pulled down and replaced every so often.