What older folk often forget is that not only could they easily afford a house in the 60s and 70s, but they likely also could on a single income. Many people nowadays are having trouble affording a house on dual incomes.
Housing keeps going up and couples are now having to split them with other couples just to raise a family. My sister and her fiance live in the basement of a house where his brother and sister-in-law live upstairs with a toddler and twins on the way. They won’t have enough room soon and can’t afford anything larger, and my sister wants to start having kids soon but the basement isn’t exactly larger either.
That’s one house for 4 working adults and potentially 4 children, when back in the day you could have a full house with 2 adults and 3-4 children on a single income.
My grandpa worked as a landscaper/gardener and was still able to support his stay-at-home wife and 3 children.