How many of them would you trust to watch your 8mo old while you go out with your spouse for a few hours? Or would be willing to take your kids to school? Or help you repair the rotted subfloor in your bathroom?
I don't understand why most comments here are perversely interpreting the goals of the article. Obviously you have different life and relationship philosophies, no need to knock people doing it the way they want.
This is simply a response to a lack of resources (time, energy, etc) to develop deep relationships during the stage of life when one can afford permanent housing. Modernity has made this harder than ever before.
If this doesn't apply to you, consider yourself truly privileged.
I don't understand why most comments here are perversely interpreting the goals of the article. Obviously you have different life and relationship philosophies, no need to knock people doing it the way they want.