The first college I attended was a Catholic college run by Benedict monks. Since both priest and brother were the same habit, it was difficult to tell who was a priest and who was brother. To avoid giving the man I was speaking to the wrong title, I just stopped using any.
My mother reprimanded me when one of the priests called my house because I did not end every sentence with “Father.” One of the things that the monks at the college emphasized was their humanity. They wanted us to see them as the men they were, without placing them on pedestals, or seeing them as already saints. Like us, they are saints in the making. The college held “meet a monk” activities on a regular basis. Yes, even in the early 70’s we called the monks by their first names.
Outside the abbey setting, it was a priest with a difficult last name to pronounce who encouraged the use of “Father” followed by his first name.
As mentioned by an earlier poster, not all cultures use surnames. I work in the Middle East where everybody is referred to by his given name. A person’s name consists of his first name, his father’s name, his grandfather’s name, etc. A name might be 5 generations long. I have a brother named Alvin Jude. When he worked in Saudi, he went by Al Jude. My bank card does not even have my surname on it. It has my frst name and middle name. The common practice is to refer to a person by his/her first and second name.
When at the hospital, or conducting business elsewhere, I am often asked for my “good name.” This is understood to mean my first name. As other Westerner’s put it, I would want my name to be good, as in honorable. My parish congregation , and workers througout this country mostly come from the Philipines or the Indian subcontinent.
I like the Southern tradition of addressing elders by Ms. or Mr. using the title followed by the first name, as in Miss Molly.