The Singular Their

Freddie revives a perennial grammar debate:

We have this problem in English: we're lacking a particular pronoun, the third person gender-neutral singular. The conventional way around this is to use their: "every student picked up their paper." But this usage drives prescriptivist grammarians crazy, as "every" is singular, which we can tell from how "student" inflects as singular. (It's "every student," after all, not "every students.") The typical advice is to instead us "his or her" in place of their. That's a technically satisfying answer, but as anyone who actually uses English knows, it's imperfect: it sounds clunky, likely due to its phonological distance from the other possessive pronouns like I, me, she, he, you– each of which has only one syllable. That's not an irrelevant concern. Phonological symmetry is actually an important consideration when it comes to certain categories of words.