China’s falling real-estate prices trigger protests, clashes, page-152

Yep Stevie boy it is my view - it is around this period that because of easier lending that the full force of dual incomes started to take effect. That doesn't mean that dual incomes didn't exist in the past but merely they were more recognised for borrowing purposes and that people were more willing to commit more.

FYI there is no frustration from me other than having to deal with your complete inability to accept reality an that things aren't as black and white as you state.