Lol, calling someone dear! Is a very polite, respectful and mature way of greeting someone.
Calling someone for example an mature woman or children, Darl or Dear is a huge sign of maturity and can open mountains of steel and unlocked doors.
things that you thought would never in a lifetime open just for you.
I have told customers, - Hello dear, or Darl.... the old ladies or more mature ladies, just looks up at me with a huge smile, sometimes i get in return. -- wow, you are very smooth....young man....very good...impressive !!
That a young man can be such a gentleman!! wow, they are ready to eat you for lunch!! and it is the word that made the heat go up a notch! for sure!
In writing, sure i use it if i have an establish relationship with that person, and it is female!
If i used it for a male client, it is still ok to put for ex. Dear Andy , that is how a formal letter should be done and it is academic. Informally it would be wrong of course, i would not call Andy a Dear when we meet or greet.
It is a great word used in the correct context or situation. Keep using it.
Proper old school British. the proper way
Mate? what the... whats wrong with mate? What is wrong with starting of being friends?
In Australia you hear that word all day long, but would you rather have the less unpolite word "ok Buddy"..? haha, no way for me i stick with Mate!