The optimist in me says maybe it's time for a trend of extended family solidarity rather than the typical "You're 18 get out of my house!" Thing.

I imagine the corporate angst is because families are staying together and sharing, and not all buying things separately, which irks their bets on forever-hyper-individualism.

Subsequent generations can even be raised by their grandparents and maybe even aunts and uncles instead of complete strangers. There goes pricy childcare.

Kids can take care of their aging parents. There goes expensive (and often abusive) elder care.

More people to take turns with upkeep, contribute to bills, pay the rent, maybe even work less!

The trick is getting along with your families, but this can work.

I'm super aware that there's gonna be a ton of people who are like "You don't know me, man. My family is terrible man. They're all psychos, man. Totally nuts."

Only you know your situation, but my point is that the stigma against living with family is capital propaganda, so if you can or must, why not?