And it wasn't as good as it's often mythologised to be. Back in the 60s (in Australia) people weren't going on holidays overseas, they lived in houses under half the size of modern builds, they had worse healthcare and lived 13 years less, they had relatively monotonous diets (growing up, my mother's staple food was bread with dripping), they weren't buying new clothes, furniture, knickknacks all the time.

And my grandfather, as a farmer, was up early in the morning and worked all day, never got weekends off. My grandmother was also working all the time - cooking, cleaning, sewing things, gardening. She wasn't employed but that didn't mean she was idle. The kids had to work when they were old enough too.

That was also a pretty decent income for time as well, there were a lot of urban poor living in tiny, crowded little houses.

It's not to say that it's never going to be possible for the mythical postwar boomer lifestyle of leisure (with modern standards of living) to actually available to the bulk of the population but it's going to need a lot more automation and productivity increases (like AI and self-driving cars) to get there, there's no "just tax the billionaires" one-simple-trick or policy that will immediately bring it in.