Many already accept they/they as proper grammar

A majority of today's teachers and grammarians are beginning to accept the use of singular "they/them" for persons of unknown gender and for non-binary persons.^[1] Not only are teachers beginning to embrace their students' use of the singular "they/them" as gender-neutral pronouns for non-binary persons, but many are also beginning to use these pronouns for themselves. In today's society where more and more people are coming out as non-binary, it should come as no surprise that there are a number of teachers who have done so as well. In addition to using singular "they/them," some non-binary teachers are also adopting the honorific "Mx" to replace the gendered "Mr, Ms, and Mrs."^[2] Teachers and students are also being trained in the modern use of singular "they/them" through well-renowned scholarly websites such as Purdue Owl, which has an entire article explaining its usage as "gender-inclusive language," and highlights the reasons why students should be using gender-inclusive language in their writing.^[3] Even more notable is that the American Psychological Association (APA) has accepted singular "they/them" as proper gender-neutral pronouns.^[4]

[P1] Many teachers already accept "they/them" as proper gender-neutral pronouns.