Something recently occurred to me, the
Mad Max films are set in Australia, and following
the first are set in the outback, yet I don't recall any indigenous characters or reference to
their tens of thousands of years of history on the continent living in a pre-industrial society.
Indeed the films make it look like everything is an empty wasteland.
You'd think that with "Western" technological society in collapse that the survivors might
look to them for pointers, of course that doesn't mean they'd necessarily get any aid, for
multiple reasons, but based on the culture I'd think it possible. Although some might find
it amusing to watch the white folks flailing about trying to keep their machine world going.