
Really, healing RP comes in as many forms as you can think of. There's the conventional MMO-style "I throw light at you and all of your wounds close" healing, there's a slower-burn "this accelerates mending, but go easy for a few days while it heals" kinds, there's very mundane "all this does is close your wounds, you're still bedridden for weeks" kind of stuff. You'll find all sorts mixed in and working together, and for the most part people roll with what's most fitting for a scene: A dramatic wound taken during a climactic battle loses all payoff when your healer just magic wands it better, but in large-scale things where people need to take some lumps and keep moving it fits right in.
If it helps any, "White Mage" in this game refers to a very specific role in the world: Other Final Fantasies use it as a synonym for "healer magician" but White Mages of Eorzea are guardians and protectors of the Twelveswood (the Black Shroud around Gridania). It's a very reclusive, very powerful, very tightly-knit group of a special race called the Padjal, all of whom are chosen by the Elementals themselves to be imparted with the power of Succor. Well, mostly. Somewhere in the past few years at least one non-Padjal was given that power, and that's the one who does the Job Quests.
If it helps any, "White Mage" in this game refers to a very specific role in the world: Other Final Fantasies use it as a synonym for "healer magician" but White Mages of Eorzea are guardians and protectors of the Twelveswood (the Black Shroud around Gridania). It's a very reclusive, very powerful, very tightly-knit group of a special race called the Padjal, all of whom are chosen by the Elementals themselves to be imparted with the power of Succor. Well, mostly. Somewhere in the past few years at least one non-Padjal was given that power, and that's the one who does the Job Quests.