\n\n\n\nIt\u2019s less about \u201cnew housing for the rich will become affordable housing for everyone else in 30-40 years;\u201d it\u2019s not as if you have low-income people moving into \u201cused mansions\u201d in the same way that you can get a \u201cused car\u201d for cheap.
\nYou do, actually! Well, not if you mean *specifically* mansions, but I have friends on welfare who live in used luxury apartments[1], and some of the houses I\u2019ve been looking at buying are half of something that *used* to be one big house but got divided in the middle into two separate pieces of real estate with a shared wall.
\n[1] Well, they were luxury apartments when they were built, with all the modern amenities like \u201cindoor toilets\u201d and \u201celevators.\u201d \u201cOn-site laundromat\u201d so you don\u2019t have to go to a public one like a plebe. Etc./
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I mean, poor people totally used to move into old mansions in America, they were just divided up and shared out, like the beautiful Victorians on LA\u2019s Bunker Hill
This was something \u201cslum clearance\u201d and \u201curban renewal\u201d and to a degree redlining and residential segregation by race and the 30-year amortized mortgage and suburbanization were specifically designed to stop, because having the nicest area in town everyone invested in become the bum zone in a generation every generation made long-term stability impossible, both like \u201curban planning\u201d and \u201chomes that hold or appreciate in value as savings vehicles instead of depreciating like consumer durables\u201d
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