Originally Posted by gmw
How about it?
More seriously, doesn't they and their etc. cover most of the requirement? I came across this article recently: A singular use of they
Funny thing, I was thinking about this the other day. I was talking to my brother and realized for the first time that I use "they" and "their" in conversation when I don't know the sex of a person. It really opened my eyes and I actually thought about writing a blog post about it. Then I sobered up
and realized I didn't have enough material for a whole post.