In general you don't have to show passports inside the Schengen area. In those places you do (including my native Denmark where passport control has become a culture war thing for chuds) passport control consists of a bored cop hastily checking if you are holding something resembling a passport in your hand. It's not a big deal.
And for the language thing you'll get far with English. In those places where nobody speaks English you'll find a way to make yourself understandable using sign language and stuff. The different languages are part of what gives Europe it's charm.
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Yeah it's because we genocided multiple peoples with different languages. If the Nazis had won the war Europe would be the same way.
In general you don't have to show passports inside the Schengen area. In those places you do (including my native Denmark where passport control has become a culture war thing for chuds) passport control consists of a bored cop hastily checking if you are holding something resembling a passport in your hand. It's not a big deal.
And for the language thing you'll get far with English. In those places where nobody speaks English you'll find a way to make yourself understandable using sign language and stuff. The different languages are part of what gives Europe it's charm.