France here - no tip is the norm, tip is for service above & beyond... But, contrary to the USA, everyone gets a proper living wage !
The only issue with restaurants in France is that they close up early, or only open within strict lunch hours.
In France, I always thought it was customary to leave the change from l'addition. (I'm not French though, so perhaps I was commiting a faux pas)
I can confirm in Italy almost no one will even accept a tip. (Taxi drivers, wait-staff, hotel staff)
Depends on when you are. Making minimum wage while living in Paris isn't exactly a "proper living wage".