This is what people said about Levittown (https://en.wikipedia.org/wiki/Levittown), the archetype for postwar suburban housing developments in the USA. They did wear out, but the owners fixed them. If the housing is still needed, it will be maintained and repaired and improved.
> Despite the US's deficit in housing ever since, many millions of houses houses have in fact been abandoned. Please explain.
Sure. No one wants to live in those areas where the houses are being abandoned, or government regulation makes bringing them up to code financially non-viable.
