I think a lot of this is going to depend on what group you are RPing with. If you are looking to get into a very heavy lore based group that wants to run strictly off the canon. You can expect some more of the rigid class/race based roles.
One thing I would keep in mind is well is that you do not have to RP your in game class/job as it appears in game. Race is a little trickier to get around but I am sure some people do that as well. For example, if you wanted to RP a profession or even just be a commoner you could RP that as well which would not really have an in game class/job equivalent. I RP a character that has absolutely no magical talent in game who has a pretty similar role identity to being a warrior, this however does not stop me from actually playing the game as a lvl 60 scholar or any other magical class. I just don't RP as a scholar when I interact with other people with my RP flag.
Ultimately this is my opinion, but in RP I want people to be who they want to be and play a character they enjoy even if it doesn't mesh with mechanics or lore. If you want to be the worlds only white mage that breaks canon, 100% do it and you can justify it as much or as little as you want. Will that turn off some RPers? Sure it might, but if that is what you enjoy playing I would never hold that against you.
One thing I would keep in mind is well is that you do not have to RP your in game class/job as it appears in game. Race is a little trickier to get around but I am sure some people do that as well. For example, if you wanted to RP a profession or even just be a commoner you could RP that as well which would not really have an in game class/job equivalent. I RP a character that has absolutely no magical talent in game who has a pretty similar role identity to being a warrior, this however does not stop me from actually playing the game as a lvl 60 scholar or any other magical class. I just don't RP as a scholar when I interact with other people with my RP flag.
Ultimately this is my opinion, but in RP I want people to be who they want to be and play a character they enjoy even if it doesn't mesh with mechanics or lore. If you want to be the worlds only white mage that breaks canon, 100% do it and you can justify it as much or as little as you want. Will that turn off some RPers? Sure it might, but if that is what you enjoy playing I would never hold that against you.