I quick search suggests the average size house in Tokyo is 66sq meters where as in LA it's 167sq meters or nearly 2.5x larger. And that's just LA. My guess is plenty of other suburbia cities the average is even larger.
I lived in Tokyo for 15 years. My last place was 54sq meters. I like there are more options in sizes than most cities I think USA and I don't believe that everyone needs a huge place.
But, I so am envious of people who have space. Space for workshops, craft rooms, etc. My mom is into Love it or List it, and people have enormous houses with yards in suburbia. I'm jealous even though at the moment I prefer carless city lifestyles