Only anecdotal, but of all my friends and acquaintances that have worked abroad, either for a limited time, or permanently, none of them regretted it, even those that went to weirder places like Armenia or Mocambique.

Of course there is an opportunity cost, and if you have family and kids it might be too high, but if I was in that situation, I'd try to take my family with me. I have other friends and acquaintances that lived elsewhere for a few years as a kid, and all of them only had positive stories to tell of it.

The cornerstone of intellectualism is the ability to imagine the world from different perspectives, to realize that not everyone is the same, and nothing teaches you that like traveling or moving to a different country, and it will make you a better person.