It's not just rich people. It's people who have spent every bit of disposable income they have on keeping their mortgage paid up. That includes not investing i

It's not just rich people. It's people who have spent every bit of disposable income they have on keeping their mortgage paid up. That includes not investing into retirement funds. They are counting on their house being the retirement fund. When the housing market collapses, there are going to be a lot of people left holding the bag.