/lit/ - Literature

Hey /lit/
That's my first time on this board.
I don't read a lot (hardly ever, really), but I like to write small time stories, for the heck of doing something.
I have this story that I'm really into, but I've got a problem.

What do you think about sexual and racial diversity ?
What I mean is : would you add in a black guy or a girl that has no purpose whatsoever to the story, just because "well, we gotta have one..."
Because I find that while the lack of it can surprise people, having just one, that serves nothing, is probably worse.
Anyway, I hope I made myself clear, sorry english isn't my first language.