Can Red Mage start at level 30?

[Omegakiyohime]

You don't get more lore with more quests, you just get more filler. I remember a few job quests that dont give you anything and just send you out to kill X creature for practice

I cannot reiterate how much this is true. You may get 2-3 lines (maybe a paragraph) of background on the job in between having to kill X because of a conflict with Y about Z every 5 levels from 30-50 if any at all. If anything, this is going to make the lore quests more concise.