Houses are also often poorly laid out. I’m not sure if it’s a side effect of open concept, or cheap builders, but it’s definitely a thing. I toured a new build community north of Austin once that mostly had < 2000 sf homes, and they felt spacious, because the layouts were excellent. In contrast, the house we wound up getting was 2600 sf but felt roughly the same to me, because the layout was just “make square rooms.” The primary bedroom was 400 sf, for crying out loud. We put a couch in there we never used, just to fill some of the space.