It's not hard to imagine how differential treatment by grown-ups of gender-related utterances could unintentionally shape outcomes. This may be clearer if we imagine a non-gender case. Suppose the child's father's name is John Smith, and that after a grown-up explains ["Sr."/"Jr." generational suffixes](https://en.wikipedia.org/wiki/Suffix_(name)#Generational_titles) after it happened to come up in fiction, the child declares that his name is John Smith, Jr. now. Caregivers are likely to treat this as just a cute thing that the kid said, quickly forgotten by all. But if caregivers feared causing psychological harm by denying a declared name change, one could imagine them taking the child's statement as a prompt to ask followup questions. ("Oh, would you like me to call you _John_ or _John Jr._, or just _Junior_?") With enough followup, it seems plausible that a name change to "John Jr." would meet with the child's assent and "stick" socially. The initial suggestion would have come from the child, but most of the [optimization](https://www.lesswrong.com/posts/D7EcMhL26zFNbJ3ED/optimization)—the selection that this particular statement should be taken literally and reinforced as a social identity, while others are just treated as a cute but not overly meaningful thing the kid said—would have come from the adults.
Finally, there is the matter of the child's behavior and personality. Suppose that, around the same time that the child's social transition was going down, the father reported the child being captivated by seeing a forklift at Costco. A few months later, another family friend remarked that maybe the child is very competitive, and that "she likes fighting so much because it's the main thing she knows of that you can _win_."
It's not hard to imagine how differential treatment by grown-ups of gender-related utterances could unintentionally shape outcomes. This may be clearer if we imagine a non-gender case. Suppose the child's father's name is John Smith, and that after a grown-up explains ["Sr."/"Jr." generational suffixes](https://en.wikipedia.org/wiki/Suffix_(name)#Generational_titles) after it happened to come up in fiction, the child declares that his name is John Smith, Jr. now. Caregivers are likely to treat this as just a cute thing that the kid said, quickly forgotten by all. But if caregivers feared causing psychological harm by denying a declared name change, one could imagine them taking the child's statement as a prompt to ask followup questions. ("Oh, would you like me to call you _John_ or _John Jr._, or just _Junior_?") With enough followup, it seems plausible that a name change to "John Jr." would meet with the child's assent and "stick" socially. The initial suggestion would have come from the child, but most of the [optimization](https://www.lesswrong.com/posts/D7EcMhL26zFNbJ3ED/optimization)—the selection that this particular statement should be taken literally and reinforced as a social identity, while others are just treated as a cute but not overly meaningful thing the kid said—would have come from the adults.
Finally, there is the matter of the child's behavior and personality. Suppose that, around the same time that the child's social transition was going down, the father reported the child being captivated by seeing a forklift at Costco. A few months later, another family friend remarked that maybe the child is very competitive, and that "she likes fighting so much because it's the main thing she knows of that you can _win_."