I agree with you, Canarsie. I am noticing this too, especially when I call customer service lines recently.
It doesn't bother me, but it seems a bit awkward because I use the first name on an informal basis, and use the "Mr./ Mrs. / Ms." with someone in a more formal, business like situation.
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"If life doesn't offer a game worth playing, then invent a new one."
-Anthony J. D'Angelo