The EU itself (not the countries) does every communication in every EU country language. I think it's the second largest employer of translators in the world, b

The EU itself (not the countries) does every communication in every EU country language. I think it's the second largest employer of translators in the world, behind only the UN. For a business, the language is whatever you agree with your customers. You are free to choose. If you communicate with the EU itself, any EU country language is accepted. Language diversity is just a fact of life in Europe and not going away soon, that's like asking the US to give up the idea of states and become a single country.