> If you can't support the carrying cost of your private property, you sell it, just as you would with a car, for example.
A house, being a home, is radically different than anything else precisely because you can't just sell it without incurring an enormous disruption in your life, and if you're being forced out of a location you invested in for "life", then an enormous personal toll as well.
I can sell my car without completely uprooting my life and perhaps ending up with a lower level of happiness. Very often, this is not possible with a home.
> And in this case, the large gain eases the pain immensely.
Not really. There are plenty of things that money doesn't make better.
You're looking at this through a purely economic lens. That's pretty mercenary, but fair enough. The point that I'm making is that for many, a house is something far larger and deeper than just an economic unit.