Canada

To be fair, the reason they're using it for retirement is because every other method (defined-benefit pensions, defined-contribution pensions, bonds, mutual funds, RRSPs) have been systematically broken by the wealthy.

The dotcom bust, and the lesser extend the 2008 crisis, wiped out a lot of Boomer and elder-Xer equity. Real estate was the next thing that "weath advisors" pushed after they ran the other options into the ground.

If people could retire with dignity and security, we probably could have headed off some of the early stages of the real estate speculation boom. Of course, that would have required rich people to make less money, or face some kind of consequence. As it stands, the economy suits them just fine, even if it fails everyone else.