I don't have to remember that far back. Within the past few years there have been times when I've only had a few pounds to buy food for a week. (There was one week when I survived on a packet of 'value' muesli and two pints of milk).
But I can also remember when only VERY posh people owned their own house. People who were just 'posh' rented in the private sector, rather than living on council estates like us 'normal' people. (I never thought of our family as 'poor' and my mother would have suffered apoplexy if anyone had dared to refer to us as 'working class').
I'm sure that my parents had to save for my school uniform, but I was never aware of it at the time.
Also, when I was young, there were only 'charge cards' (rather than 'credit cards') where the full balance had to paid at the end of each month. Only the very rich had such cards.