Confessions of a girl growing up

I was at the mall with a friend and I was dressed in my usual androgynous clothing. My friend wanted to go into Gilly Hicks so we went in and she was about to try on some shorts. When we were in the dressing room area, the employee who was unlocking the room, leaned over to my friend and said “Boys aren’t allowed in here. That’s a boy, right?”. My friend then told her that I was a girl. Then, as though the employee hadn’t put her foot in her mouth enough, she turned to me and said, “So you want to look like a boy”. To that I answered “Not really, I just like this style.” She proceeded to ask me if I get mistaken for a boy a lot. She was the first person to so blatantly ask me so I told her that, no, she was the first. AND THEN, TO TOP IT ALL OFF, she says to me “You’re twelve, right?”. What the heck!? Didn’t you realize that you should have left and STOPPED TALKING already!!! I then, informed her that I am 16 and a half. She finally left, but she was giggling the whole time like a crazy person. I would have gotten mad if I didn’t genuinely believe that she had such a low IQ that she didn’t realize that what she was saying was rude and obnoxious. I was really taken aback at the whole situation.