See, I've never understood why this should be true. Employees in other industries manage to do a good job without the motivation of a tip. Why should servers be any different?I agree that it’s a “damned-if-you-do, damned-if-you-don’t” kind of thing. Most people hate the U.S. tipping custom, but most people would also complain if tipping went away, causing restaurant prices to increase and servers to stop being solicitous.
I have not yet been to France, but I've been to restaurants in several other countries where tipping is not expected. Can't say I've personally noticed any difference in service. Maybe I've just been lucky.