The first time I was referred to as a she was when one of my nephews referred to me as a she a long long time ago.
Since moving to my new location and growing my hair out, I have had it happen a couple of times. Each time, realizing their mistake people would apologize.
A couple times people did not realize their mistake. Usually it is men who maam me. But recently women have begun doing it to. There was a mother with her child who maamed me evening but then quickly apologized when she realized I was biologically a man.
Honestly though, it really does not matter to me if I am referred to as a sir or maam.
But more people, both men and women have begun maaming me even though I am dressed in male clothing and not in fem attire, not underdressed and not wearing breast forms.
What are you experiences with this? Are you offended if they call you sir or maam? Or do you not have a preference? I think if you are comfortable with who you are, it should not matter which term people use to refer to you. But it is nice to know that many people are sensitive to the feelings of others. As evidenced by people apologizing, apparently thinking they had insulted me or something by referring to me with the wrong gender pronoun.