[input_sh]

Yes, a social construct of how one wishes to express themselves (from masculinity to femininity to anything in between).

At-birth, it matches your sex. Once you grow a bit, they may diverge in a small amount of cases.

[wizzwizz4]

> At-birth, it matches your sex.

Are we even sufficiently social that young? I'd rather assume it's ill-defined. (How would you even test that?)