People have probably always dropped old ways for new ones, otherwise we wouldn't have cities (or advances in technology or...).
Think you'd have to go out in the sticks for somewhere frozen in time or near enough. There's a few of the older country towns around here that have some modern aspects (modern technology) while still fiercely clinging on to the Federation/style buildings (at least in the centres, less sure about the surrounding houses), I don't know if it's a similar situation elsewhere.
I agree with the general sentiment though, nothing worse than watching genuinely interesting architecture and things that can really identify a place getting replaced by "modern" incredibly boring "minimalism" trying to pretend it's "clean" and "modern".
on the culture front I find different cultures really interesting and think people should really try to hang on to all but the bits that infringe human rights, that can all get aggressively resigned to history
