This would be impossible with an auditorium of, say, 150 students.
1/2 of the class would be gone.

Or, even a room with less students, it's taken away from teaching.
I don't know about any of you, but I rarely, if ever, refer to people in real life as "sir" or "ma'am" or "male" or "female."
Where are these people encountering this stuff? For as long as I could remember, I usually just shake someones hand and say "hi, how are you." As we shake hands, the person may say "Im john" and I say, "Im SF1900." In no context in my life has "sir" or "ma'am" or "male" or "female" come up. And why are professors even addressing students in this fashion? You're the professor. Just have students come in, sit down and learn.
Strange.