is this part of freeing the nipple?

On Friday, I went to school without wearing a bra ( I'm a 34 DD, which I don't think is alarming big, and I wore an oversized sweatshirt and a jacket over it so it wasn't noticeable).  I have nothing against bras and went braless just this once for comfort reasons.  When I got home later that day my mom was so mad at me.  She told me that I was nasty, that I'm selling my body and that I'm asking for men to come up and grab my breasts.  I was so angry, as if my not wearing a bra suggested all those things.  Once again I have nothing against bras.  Just the fact that I was told that I couldn't wear one because of such and such made me want to go braless forever.