It's not only a culture difference but a legal one. It's not just rude, it's actually illegal in some parts of Europe. Some parts of Europe remember what it w

It's not only a culture difference but a legal one. It's not just rude, it's actually illegal in some parts of Europe. Some parts of Europe remember what it was like when people went around photographing other people and making reports on them. Furthermore, in the Netherlands, for example, there's a portrait right that photograph subjects have.