I was raided in the south to a British mother, so not only did I call my parents’ friends Mr. and Mrs, but I continued to do so my whole life. At the age of 60, I still called my mother’s 90-year-old friend Mrs. X.
When our D went to LA for school, she told me she had to warn her friends to call me Mrs. Hayden, since otherwise they would have just called me by my first name, which I’m not comfortable with. I thought it was hilarious that they all seemed to want to speak to me, just so they could call someone Mrs. Hayden, just as a lark, something different.