The reason that people now prefer "they" instead of "he" is that it causes a bias towards a gender when discussing things. If you're talking about something th

The reason that people now prefer "they" instead of "he" is that it causes a bias towards a gender when discussing things. If you're talking about something that has typically been male-dominated, it's kind of unfair to use "he" when talking about unknown people. So people prefer the use of "they" now, even though it's supposed to be plural. English just doesn't have a neutral pronoun otherwise.