I didn't say all European travelers eat at McDonalds. I'm sure many, many travelers are far more adventurous and eat like Anthony Bourdain.
But I still find it remarkable that McDonalds strikes such a chord with people, particularly people like my Swiss friend who is as cultured and sophisticated as they come. If we were choosing a film, he'd want to see the most difficult, obscure documentary. But choosing lunch - there's just something about the fear of a bad culinary experience that trumps all other concerns.