Talking about average size simply means those who are very rich built incredibly large homes.
People were not living in shacks in the 1950's and 60's.
Now many of those old homes are divided and rented out to multiple families.
Again when you talk about average household size what that means is fewer people are having a whole lot of children, but there were many families with 1 to 2 children in the 1950's and 60's.
Today’s new homes are 1,000 square feet larger than in 1973, and the living space per person has doubled over last 40 years
You leave out the crucial words; on average.
Again, the affluent are living in much larger homes. There are many more mansions.
And many more homeless. Especially children.
The mean and median size increase track together nicely, which disputes your assertion.
No it doesn't. The median has just shifted upward because more larger homes are being built. The middle moves closer to the top if the numbers at the top increase.
And none of this takes into account how many of these homes are second or third or tenth homes.