"Much has been written on
they, and we arenāt going to attempt to cover it here. We will note that
they has been in consistent use as a singular pronoun since the late 1300s; that the development of singular
they mirrors the development of the singular
you from the plural
you, yet we donāt complain that singular
you is ungrammatical; and that regardless of what detractors say, nearly everyone uses the singular
they in casual conversation and often in formal writing.
They is taking on a new use, however: as a pronoun of choice for someone who doesnāt identify as either male or female. This is a different use than the traditional singular
they, which is used to refer to a person whose gender isnāt known or isnāt important in the context, as in the example above. The new use of
they is direct, and it is for a person whose gender is known or knowable, but who does not identify as male or female. If I were introducing a friend who preferred to use the pronoun
they, I would say, āThis is my friend, Jay. I met them at work.ā
If youāre someone who has a binary gender (that is, who identifies as male or female) and youāve never encountered the nonbinary
they before, it may feel a little weird. Or you may think itās unnecessary. You may be confused by all the new terminology (though thereās help out there for you). Yet weāve been searching for a nonbinary pronoun for quite a while now.
There have always been people who didnāt conform to an expected gender expression, or who seemed to be neither male nor female. But weāve struggled to find the right language to describe these peopleāand in particular, the right pronouns. In the 17th century, English laws concerning inheritance sometimes referred to people who didnāt fit a gender binary using the pronoun
it, which, while dehumanizing, was conceived of as being the most grammatically fit answer to gendered pronouns around then. Adopting the already-singular
they is vastly preferable.
"
Source:
Though singular 'they' is old, 'they' as a nonbinary pronoun is newāand useful
www.merriam-webster.com
This should end the debate, but somehow I doubt that it will...