in Germany we have this stupid differentiation with "Sie" and "Frau X", or we can say "Du" and "Eva", and the horrid thing is you never know which one is appropriate. There are lots of people insisting on the formal addressing, feeling that it's a lack of respect or imposing inappropriate intimacy if you use the informal one, and others who feel exactly the opposite. I still couldn't get used to "Sie" after being a German for 44 years, and if someone calls me "Frau Röben" I probably wouldn't answer because I wouldn't think he meant me - I'm Eva.
But is this not the same in lanquages like Dutch and French?
It is in modern English that we do not use these different ways of addressing someone, many if not most languages do.