Many years ago, I read Marge Piercy’s book, Woman on the Edge of Time. When I first read it, I was particularly taken by one aspect of the future society she envisioned. In this society, one singular noun and one pronoun are used for everyone: people are all referred to using the gender-neutral “person” and “per.” It was an idea I really liked because it recognized that, regardless of our gender or sexual orientation/preference, we are all people, and it was easy since everyone was person, not he or she; and everyone’s pronoun was per. It was not until the LGBTQ+ community started using they and them, that I started to think about it more and felt increasingly that we really need gender-neutral personal pronouns that can be used by everyone.

(SOURCE) https://www.advocate.com/voices/dropping-they-them-pronouns