In Slovakia, I met a waitress of about 25 years old who only spoke Slovak, Hungarian and a third language that I also didn't speak, maybe it was Russian. In a n

In Slovakia, I met a waitress of about 25 years old who only spoke Slovak, Hungarian and a third language that I also didn't speak, maybe it was Russian. In a night train from Poland to Germany, I met someone of about 30 who only spoke Polish and German. So it can still differ a lot per person. (I only speak several western European languages.)