It's not astonishingly rare. The comment you're replying to contains examples, here are some more: https://en.wikipedia.org/wiki/Jus_soli

About 20% of all the countries have it. That isn't "astonishingly rare" in my book.

  > is an astonishingly rare policy

Let me repeat for you part of the *FIRST SENTENCE* in my comment

  >> common in "the new world"

So

  > Nonexistent in Europe

Last I checked, Europe was not "the new world".

  > the developed world

Considering that the US and Canada are developed countries, you'll need to rephrase. If you want to make jokes about the US not being a developed world then we'll be forced to make jokes about your lack of literacy and inability to use Google.

Please, for the love of god, just read the comments you're replying to. It's like the absolute bare minimum requirement.

  > But new world is getting pretty old now too.

200-300 years isn't that old. There are plenty of buildings older than that all across Europe. There are businesses older than that. There are businesses and buildings that were older than that before the US even became a country. The *FALL* of the Roman empire was in ~500AD. It was a true empire even before 0AD, spanning across coastal Europe and northern Africa. It's height being ~100AD.

I'm sorry, the new world still has a few hundred years to go before we can even consider it old. It's not even a pre-teen by the standards. I mean we only discussed Europe. But the pyramids were older to the Romans than the Romans are to us.

The old world is... old