And another thing, don't use national flags to stand for languages. They are not even close to being the same thing
You don't need to provide a different icon for every language. Just name the language in that language. See how Wikipedia does it
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
You don't need to provide a different icon for every language. Just name the language in that language. See how Wikipedia does it