People need to realize that your character is not defined by his or her class in this game. You are defined by your skills, abilities, and traits. It would be closer to the truth to say that you are defined by your Discipline rather than this fixation on classes/jobs that people seem to have.

It takes more than a sword to make a gladiator. If I equip a shield, and few sword skills, and a bunch of healing spells, I'm a paladin, even if it doesn't say so on my character sheet.