Which is why I'd say yes ma'am or no ma'am to you, you're older than I and that's how I was raised.
The nursery director at my church was 23 and told me many times not to call her ma'am when assisting in the nursery on my assigned Sundays. She eventually gave up since I was raised that way and it only meant respect for an authority figure. I was only a volunteer in the nursery and she was the director. Respectfully calling her ma'am only made sense






