Earlier quoted context omitted.
"Americans also have a weird fetish that you don't find other places about buying homes in their 20s." This is fueled by the social taboo of living at home with your parents/family and the availability of mortgages.
And the fact that at the end of 20 years of paying a mortgage I own a piece of property while at the end of 20 years of paying rent I own nothing.
if you spent the same in rent, you would have lived in a 2-3 bedroom for 20 years, moving every time you changed jobs
20yrs is a LOT of time to be living in the same place you can afford downpayment when you are 20yr old. and a LOT of time to work/study on the same area