https://www.bbc.co.uk/news/business-45420795#:~:text=The%20U....
https://link.springer.com/article/10.1007/s10902-016-9732-2
or do you own search.
This desire for extremely large houses just seems to be a combination of prior expectations that houses will be large and status seeking. Expectations can adjust over time and I don't put much value on status seeking.
[1] The BBC article lists "4 rooms per occupant" as the threshold beyond which there is no increase in satisfaction.
Consider a 3/3 with a kitchen, dining room and living room. For 4 people (two kids and two parents) you have 9 rooms, or a little over 2 per person.
This family would need to double their house size before maxing out.
* moving to a larger house leads to a small increase in "housing satisfaction" in most cases;
* houses larger than 4 rooms per occupant bring no increase in satisfaction with increasing size.
I generally think that there's too much of a slant toward large houses in the new housing stock in the US, though - they're more expensive to buy and maintain, and generally not the best choice for young people.
Also, Europe's prevalent masonry construction might "feel" solid, but that doesn't equal a high level of "building standards". A whole lot of western safety/environmental/plumbing/electrical/accessibility standards have changed in the past 20-70 years.
Much in the way chrome-adorned '60s US cars "felt" solid, and older people scoffed at the inornate "plastic cars" of the '90s, this perception of quality didn't translate to actual engineering superiority.
Some of the over-sized chintzy boxes that are built in the US are actually built to pretty dang good standards, i.e.: https://en.wikipedia.org/wiki/Florida_Building_Code