I don't want, nor expect, to be called "mate", "chum", "pal", "geeza", or whatever, neither in the street nor at an airport terminal, by people who are not intimate friends.
I remember an incident when I held a door open for a group of juveniles, most of whom just passed through, some passed through and grunted, and the last one said "cheers mate".
My children still speak of my response which was along the lines of "we are not acquainted and we are not drinking together".
But I am of course a boring old fart.