Yes exactly - my parents and inlaws had homes 2x the size of what they grew up in, and also had half the children their parents had.

Indeed. Growing up in the 80s -- in a fairly middle class family -- a lot of my friends had bunk beds.

Now "living wage" calculations assume that every child has their own bedroom.

Let’s go further and:

- take the average household size in 1950 vs 2020 to calculate median house price per person in a household

- then take the average square feet per person and find out what % it has increased in the past 75 years

Then layer those stats on top of the inflation adjustments to hopefully remove some of the confounding factors?

I think this is likely a distortion caused by zoning regulations, resulting in "missing middle" housing.

Basically, if you are only allowed to build single family housing on a plot of land, it doesn't make sense to build anything other than a large luxury home.

The size of a single person has also increased. Considerably.