Biggest Culture Shock for Americans in Europe

Culture shock is a real thing. It's not always bad, of course, but it can be a bit weird to be in a place where everything seems just a bit different. Or sometimes, very different. 
One of the most common types of culture shock for Americans happens if they're lucky enough to visit Europe. The cultural difference between Americans and Europeans might not be night and day, but it can be a surprise to see how our friends across the pond live. It can even make some people go, "WTF?!"
On Reddit, the so-called "front page of the internet," hundreds of American Redditors have chimed in about the most shocking and surprising things they encountered during their trip to Europe. These are the most common (and funniest) culture shock experiences.
Biggest Culture Shock for Americans in Europe