Octavia, you're not wrong in your overview - but have overlooked one huge change: in the '50s and '60s, the woman's salary wasn't taken into account for mortgages! As late as 1979, XH1 and I couldn't get a local mortgage based on both our salaries - it was a major factor in our moving to London, where banks & building societies had caught up.
If a woman needed to take out a mortgage by herself in the late '70s, many lenders still required a man's guarantee.
Other PPs' points about the vertiginous rise in our lifestyle expectations are very significant, too. As part of the Thatcher government's 1980s 'economic miracle', Brits were encouraged to take on debt. Interest on savings was less than the rate of inflation, so it made sense to buy quickly - and, for several years, the cost of borrowing was much less than inflation.
For those who still had jobs, wage inflation was also rapid so there was a general air of affordability. A couple like XH1 & me, with two equally high salaries going up rapidly and banks begging us to take out more cheap credit, could suddenly afford a ton of stuff that would never have been within our parents' reach.
For people like my lovely cleaner at the time, whose husband was doing odd jobs after being made redundant, nothing was affordable and no amount of cheap credit could make it so. We're still living the repercussions of that decade: it was the start of a new division between the 'haves' and the 'have-nots'; it also normalised rampant consumerism which, for most, needed two salaries to maintain.
That change impacted women more immediately than men. It forced us to move very quickly from thinking of paid work as a choice to a necessity. Men had never thought of employment as a choice, so no change for them, and they still didn't think about the work of running their homes and families. They were still 'keeping a wife' (if they still had their jobs) and were fully bought in to a two-salary lifestyle, never stopping to think about who would now look after their daily needs and families. The issue was blindingly clear to their wives, though!
It's nice to see men becoming less stupid about this. It's been 40 years, FGS! I've got to say it's not nice to notice how many men are still stupid about this, or claim to be if they can get away with it.
This post (sorry about the length) more or less explains why I'm quick to advise LTB these days. Women's financial autonomy is a thing - a critically important thing, both personally and economically. Any bloke who's failed to notice, after TWO FUCKING GENERATIONS, that men's responsibilities no longer end as they open the front door, deserves to be left to manage his own life in a bedsit.