No.
If you are going to live in an expat enclave surrounded by your fellow countrymen and –women, you don’t need to learn the language. If you are not an Adventurer or a Cultural Expat, but an Escapist, and especially if you are moving for purely economic reasons, you might handle life in your new country just fine without learning the language. Personally, I would find it very frustrating not to benable to communicate with the people who surround me, but there are folks who are quite happy with that arrangement.
If your idea of a great life is to live less expensively than at home in the US, but surrounded by other North Americans and speaking English, more power to you.
