First, let's look at just the tip(ping) situation
Five years ago, as a precocious (aka dumb) 21-year-old dining in a Paris restaurant for the first time, I made the near-fatal mistake of slapping a $10 euro under my water glass. Before I walked out those bistro doors, I felt a firm tap on my shoulder.
"Monsieur, you for-got zis," my waiter said with the most stereotypically snooty French diction, handing me my folded bill. He was insulted by my gaucheness. I was insulted by his aversion to deodorant. We were even.
While the "no-tipping" movement is gathering steam in the States, it's been commonplace in Europe since… well, forever. Dining out there is free of the mental math, or the guilt of judging your servers. In many parts of Europe, being a server is a legitimate, respected, and salaried profession.