It's always good to throw a little heterodoxy out there. From the "everyone knows buying your own home is the best way to financial security" department, we have this collection of arguments against it.
I remember seeing a television ad for realtors that noted the children of home-buyers have better school outcomes, but there was no mention in the ad that this could be the result of rental housing being redlined into service areas for terrible schools. When I worked for a city planning commission, a proposal to build apartments was met with severe community opposition because "I don't want my kids going to school with kids who live in apartments." (That's an actual quote from a citizen at the planning commission meeting. When staff noted that market-rate apartments rent for more than the average neighborhood mortgage payment, the citizen commenter did not apologize for making kids who live in apartments go to school with his poor-ass kids.)
I think the main way the advise of the "buy your home" crowd works out is with an expected political climate. As long as housing has barriers to supply, such as bureaucracy and NIMBYs, housing will continue to look like an appreciating asset. And as long as home-buyers can rely on the formation of property bubbles, there'll be an element of a Las Vegas casino's appeal to purchasing a home.