[fakedang]

Replies like these reek of Western exceptionalism or the misfortune of not having travelled much.

Yes, there are certain countries where one can pretty much work in without the need to obtain citizenship. I wouldn't want to be a citizen of Qatar/the UAE (world's most powerful passports) or a citizen of China, simply because obtaining them subjects you to a whole can of worms of absolutist laws.

And yes, people can easily live in a country without interacting with the locals at all. Just ask the Americans and Europeans in the Gulf or Singapore, who barely interact with any locals outside of their workplace. Or ask expats in India and Indonesia who barely interact with locals except in the context of some menial chores.

Clearly you haven't lived or worked in Asia.