I think it was something my grandmother said. I must have been 9 or 10 and she was going on about how girls behave and that they're better than boys, and that I was going to have to stop doing x, y and z because reasons. I'd also been trying to learn how to whistle and she was telling me I shouldn't be doing it.
I remember feeling negatively about this stuff but not ever actually obeying her. I was actually fairly mean about it. Another thing she used to do was try to drag me to church, and I remember having conversations about god with her that made her uncomfortable because I was asking for proof of the existence of god, and these were so much fun for her she stopped taking me to church and stopped trying to explain these things or to even get me on board with it. The same happened with her trying to get me to conform to her vision of a girl. I think I was just an impossible kid to her, but to me I was totally justified in asking why are you trying to put this stuff onto me? Some early aspect of my parents' upbringing had always taught me to use my brain over just believing what I was told. I mean I had to - if I did something bad they wouldn't just clip me round the ear they'd ask me why I did it, and I'd have to explain my thought process behind my acting up. If I'd told them someone else had told me to do something and I'd brainlessly obeyed they would have seen through it in a second and told me so. I was always responsible for my own actions and decisions, there was no getting away from it.
So when it came to other people trying to put their ideas onto me it never went anywhere...
But I felt dysphoric because I knew what she was saying was generally true. This was how girls were behaving, this was what people expected of them. This was what was always going to be expected of me because I looked like one of them. Even at that age I knew I was an outsider and wouldn't be able to conform as long as I was who I was. Most of the time I ignored it all, until someone like her came along and put me on the spot with it and reminded me of it.
I know at that age I was already beginning to feel like I was "disobeying" someone or something, by being myself, thanks to her.