It bugs me that so many people's default example of published fanfic is 50 Shades of Grey.
What about West Side Story, a famous modern AU of Shakespeare's Romeo and Juliet?
What about Dante's Inferno, a self-insert RPF if I've ever seen one?
What about Wicked, a pre-canon AU of The Wizard of Oz?
Hell, what about Percy Jackson? There's definitely an argument to be made that that's a modern AU of various Greek myths.
Humans have been writing fanfic as long as they have been telling stories. In about the year 20 BC, our dear Roman poet Ovid wrote the Heroides, a series of aggrieved "letters" from the female characters of famous myths to their respective male heroes. Are you telling me that Ovid, writing a letter from the perspective of Queen Dido to Aeneas -- Aeneas, whose fantastical adventures were put into poem by Virgil -- wasn't writing an outsider-POV fic? A fic that is, in fact, translated in Latin classes world-wide today!
There is so much famous fanfic out there, but people tend to forget that it is fanfic once it becomes mainstream enough. And as a consequence of that, people who aren't into fandom don't see how beautiful fanfic is, and some members of fandom feel shame associated with writing and reading fic. But fanfic is beautiful, and it is something humans have always done, and it is nothing to be ashamed about.
So if you ever find yourself in a situation to give an example of published fic, think outside the box. Remember that published fanfics hide in plain sight; once they're famous enough, we no longer think of them as fanfic. And never forget that fanfic is a very, very old human tradition, and your ancestors who partook in it would not have wanted you to feel ashamed of it.
