I was born with the magic. They train us in a tower because they're scared of us. It's all shades of bigotry, really.
But I came out of the tower to join the Grey Wardens and fight a Blight, which is a really bad thing with millions of monsters and the land becoming scarred and dead.
Only we were betrayed and most of us died, so I had to rebuilt everything, while fighting a war against the Blight and uniting the Dwarves, Dalish Elves and humans to stand against it.