Because you like Mowgli in The Jungle Book
Ciri had a princess upbringing, and some of the facts of common people's lives are a mystery to her. See them in The Witcher.
Emma Woodhouse knows what's best for everyone else. Just don't try to tell her what to do. See them in Emma.
Just call Jeff Lebowski The Dude. Or His Dudeness, Duder, or El Duderino if you're not into that whole brevity thing. See them in The Big Lebowski.
Clementine is a beacon of innocence in a dangerous, deadly world. See them in The Walking Dead (Video Game).
A man of the court, Lord Varys knows how to manipulate it better than anyone. See them in Game of Thrones.
Protecting his family's name and its power are more important to Tywin Lannister than anything or anyone. See them in Game of Thrones.
When push comes to shove, the usually overly cautious Luigi has the heart of a hero. See them in Super Mario Bros..
Thor is Asgardian nobility who is tickled by how us earthlings live. See them in Marvel Cinematic Universe.
Emmet Brickowski is so upbeat it's not even human. Everything is AWESOME! See them in The Lego Movie.
Derek Hale is not one to make allies easily. This moody werewolf is dark and brooding. See them in Teen Wolf.
Will Byers is just like any other twelve year old, except he's stuck in another dimension. See them in Stranger Things.