Comment by stackptr

One line of thinking around requiring usage of preferred pronouns is that normalizing the act of giving/asking for pronouns allows for more inclusive spaces. For instance, if someone is transitioning between genders it might not be obvious what their gender identity is, and assuming their gender identity can lead to further dysphoria. At the same time, if you are someone who sees that the only people who get asked for their pronouns are people who do not obviously exist at either of edge of the gender spectrum, then the act of being asked for pronouns is tantamount to someone admitting their own confusion of your identity. This issue can be resolved for all parties and gender identities when asking/giving pronoun preference is the norm. For people with more straightforwardly normative gender identities, offering preferred pronouns is an act of solidarity with people who might not have the privilege of their gender identity being so obvious.