

Alternate take: If we actually implemented my above plan, you wouldn’t need to be stupidly rich to own two homes. Home prices would be reasonable, because there wouldn’t be giant corporations hoarding all of the real estate.
We have over two vacant houses for every single homeless person in the country. We could give every single homeless person a house, and still have plenty to act as summer cabins. And that’s before you even factor in the fact that the market would be flooded with houses (at least in the short term) from corporations trying to avoid the increased taxes.
Which is really only used in the americas. Europe/Asia doesn’t use it, except in specific circumstances where the child wouldn’t be eligible for citizenship elsewhere. But even that is only due to treaties set up to prevent stateless people. If the child would have citizenship elsewhere (like in America), the European/asian country would tell them to apply there instead.