I teach college in different institutions, and seem to have a trend emerging; students addressing me by my first name, especially in emails. Hardly ever in my years of teaching has a student ever done that, and now all of a sudden there have been several. I've never thought of myself as a person to insist on formality or demand deference, but to be honest it's rubbing me wrong. Maybe it's just a sense of some proper order, I don't know. I never addressed my professors other than as "prof. ___" till the day I got a doctorate myself, not even my dissertation adviser until I had defended. What's the practice out there with everyone else, in academic settings or life in general? Do you call everyone by their first names or are there people you use Mr./Mrs./Ms./Prof./Dr./whatever with? How do people address you, and are their people you think SHOULD use those titles with you?