I think it works for some games like BOTW/TOTK and Skyward Sword for Link to be a knight or knight in training when he has an established relationship with Zelda, but I think it would benefit the Zelda series to go back to the classic setup of Link being a nobody who gets a sword, and stabs and slashes his way to becoming a legendary hero, even if the story takes pains to emphasize his status as the chosen one.
