I think, as in any world be it fiction or real life, people adapt and learn languages as needed. Especially hundreds of years ago when foreign trade and commerce was so common that if you didn't speak the language you usually hired someone who did! Money, money, money.
I imagine there is a 'common' language that everyone speaks (think Common and Orcish from WoW) and then the beast tribes have their own language that is far more private. I can't remember of a place where it says such outright, but that would be a good guess to make. Though you don't really hear the other races speak in any kind of foreign tongue, it also wouldn't be surprising if it was indeed a thing. Sylphs, for example, have their own differing ways of communicating. Like dancing when they say hello! While not a language in itself, it still fits.
I think the game just glosses over it since it isn't really a focus in any of the things we do in the grand scheme of things. It makes a nice head canon though!
I imagine there is a 'common' language that everyone speaks (think Common and Orcish from WoW) and then the beast tribes have their own language that is far more private. I can't remember of a place where it says such outright, but that would be a good guess to make. Though you don't really hear the other races speak in any kind of foreign tongue, it also wouldn't be surprising if it was indeed a thing. Sylphs, for example, have their own differing ways of communicating. Like dancing when they say hello! While not a language in itself, it still fits.
I think the game just glosses over it since it isn't really a focus in any of the things we do in the grand scheme of things. It makes a nice head canon though!