What nonsense have you been reading? People like you make me feel ill.
My son, a “professional “, on good money fortunately, is paying £1000 per month th in a shared house . He has a bedroom that he used also as his work from home station and shares a bathroom with one other.
How on earth do”normal” wage earners in London afford to rent? How can they possibly save for a mortgage deposit? My son earns a lot more than me but London Weighting does not transform a shop assistants salary into a mega wage.
As for your final comment, people on regular wages could generally afford to buy, or rent, and the problem in the late ‘70’s was not affordability but the availability of Mortgage Funds - there was a queue!
You really have no clue as to the challenges posed to youngsters.