HA!! Sorry I have to laugh a little.
I was a working single during those dark days of double digit inflation, 1970’s till 1990.
I tell you 10% raise was routine in the 70’s in the 80’s I was getting 20-25% raises.
Did not take a second income to do that.
Cars bought were twice the price 2-3 years later for the same model (before you finished paying them off even), my payments felt like they melted away.
Not saying it would have not been tougher raising a family, but if you were buying on credit, inflation worked for you a lot of times in those days.