Probably not very much. I mean, just because you use a lance doesn't mean ICly you have to be a Dragoon, and just because you punch good doesn't automatically mean you must be a Monk. Your character may fit the archetype, but that doesn't mean they have to be labeled as such.
Even in games like Final Fantasy VII, Cid has the Jump ability, but he's not called a Dragoon. Barret uses guns and gadgets, but he's not called a Machinist. The only person from that game that outright says they are a certain "class" would be Yuffie.
So even if in-game everyone is playing Jobs, that doesn't mean ICly they will have to abide by that.
Even in games like Final Fantasy VII, Cid has the Jump ability, but he's not called a Dragoon. Barret uses guns and gadgets, but he's not called a Machinist. The only person from that game that outright says they are a certain "class" would be Yuffie.
So even if in-game everyone is playing Jobs, that doesn't mean ICly they will have to abide by that.
