This is actually an important thing to bring up as it helps people in this thread understand the difference between gender and biological sex better. Gender is something that is completely fictional and forced onto young children by society, not something they even know about or understand when their growing up in infant age.
Its not something they should even care about, most of it is just some human fantasy because we have this obsession of organizing things and putting them into categories without thinking about whether or not it makes sense or is fair (see: gender inequality).
See, idk. Im getting confused. Gender dysphoria and transgender people are not just trying to recategorize themselves into a different neat box though, they identify as a different gender than what was assigned at birth. Being male and female is not just human fantasy, and transgender people are not just trying to "be a man" or "be a woman" because they want to wear a dress, or use power tools and have a moustache, or fulfill stereotypical gender roles, its because humans can be born with a sex that mismatches their identity. Thats the issue here. You cant choose gender dysphoria. Not everyone is transgender, its not a choice for literally everyone to make thats just a bunch of societal bullshit. That cheapens the problem people with dysphoria face, and basically implies that transgender people are just trying to fulfill societal norms by the other gender as opposed to literally suffering because of a biological rarity. And it also implies that nonbinary and cisgender are the only true answer and that everyone else is jist conforming to some made up societal fantasy; that everyone really is non binary but just dont know it, which is basically a blow to the transgender cause because they have to fight every day to have people realize its not just a choice and as simple as -wanting- to be a "boy" or "girl". Its not a choice and its out of their control, has nothing to do with societys ideas of what a man or woman is supposed to be or look like. Gender is not fantasy and its not a choice, which is exactly why transgenderism and the like deserve to be taken seriously