In India this is pretty common as well. It makes meals etc. much easier, provides instant babysitters (the grandparents), and so makes it more flexible for a husband/wife pair to work and still have some free time in the evening.

Privacy of course suffers, but then again I with multiple kids like a lot of US households have, there isn't that much privacy anyway.

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> I often think that the "move out from home" pressure is a ploy by the real estate industry.

I think it's any commercial entity, right? When you move out of your parents' house, now you collectively have to pay/buy

- Extra rent

- Extra money for furnishing

- Probably more money for transport (could have carpooled with family or neighbors)

- More money for groceries (living on your own you will likely waste more groceries)

- Extra money for insurance (since it isn't a family pool)

etc.

So you're right, but possibly underestimating it. There is a lot of vested interest in convincing young people that living with their parents somehow makes them "losers" etc.