My spouse and I share a house with my spouse's sibling. My spouse and I basically have total control of an upper floor, and my spouse's sibling has the bedroom

My spouse and I share a house with my spouse's sibling. My spouse and I basically have total control of an upper floor, and my spouse's sibling has the bedroom on the lower floor. The arrangement works really well for us, and our bills are signifcantly lower. With this arrangement, we get to save quite a bit more for retirement, and there's one extra responsible adult to help out with childcare (which is huge). We could afford to live on our own, but do we really want to? In the future, we expect to "live with our parents" again, but it will be because they will move in with us as they advance in years and need additional care. So, idk, the article seems to start with the assumption that living with family is undesirable and a result of financial stress. That's true for some, sure, but it can also just be the way people prefer to live.