Fundamental issue is property is so overpriced compared to previously. Couples have to/choose to overstretch or pay exorbitant rents. Immigration/population rise and wealth inequality means miserable futures for so many as housing demand is always there. The country was broke in the seventies but at least working class people on average incomes could aspire to having security of owning their own home. GDP increases ain’t a measure of people’s happiness that some seem to think it is.
Even many rich middle class have a pretty average life compared to what they should be enjoying as tie it all up in a mortgage - more philosophical really but if you will buy that 3 bed semi in Fulham for a million.