I don't know why you got downvoted for just asking a question. I'd be curious too. In some countries it's much easy to become a citizen (give up your previous c

I don't know why you got downvoted for just asking a question. I'd be curious too. In some countries it's much easy to become a citizen (give up your previous citizenship) than it is to get permanent residency permission (in which you're still technically a citizen of your previous country)