Quote Originally Posted by Penthea View Post
That's because "he" and "she" are both singular that this works so well. "They" is plural and depending on what is being said that can change the meaning of the phrase. The story refers to both groups of people and individuals together in phrasing very frequently, and replacing a singular word with a plural could very easily convey the story in a misleading manner. Simply replacing "he" and "she" with "they" can be done but it would definitely not result in an equally well told story.
This is incorrect. Singular 'they' has been used since the 16th century. Usually 'they' is used in replace of he or she if you don't know the gender of the person in question. There is a reason why there are a lot of people that wish 'they' to be used as a pronoun for them and it isn't because they wish to break the english language.

https://www.merriam-webster.com/word...nonbinary-they