Quote Originally Posted by Enkidoh View Post
If I had to hazard a guess, I would say it's kept not just because of the huge amount of tinkering needed under the hood to do so while still keeping the system workable, it is probably also required for the benefit of 1.0 players who have yet to rejoin the game, and could use their old 1.0 character data, which would still retain the 'class upgrades to a Job', and furthermore, retain all their previously attained EXP from 1.0 - so changing classes into full Jobs from level 1 would potentially cause errors in the data that SE probably want to avoid having to fix, and prevention is better than cure after all.
Jobs that are upgrades of classes don't have experience, and this sounds like a non-issue in my professional opinion.

SE would have to scrap all the class quests, and have to make new 'from level 1' Job quests for the starting classes which just violates the lore in so many ways. It would just be too much of a can of worms for SE to bother with, with little overall benefit.
Removing combat classes from the system does not necessitate removal of combat class quests from the system. Just change the quest icons for the 1-30 quests to the job quest icons, have NPCs refer to you as the class until you reach the job quests proper, and give everyone a quick bit of dialog at Lv1 that says something like,

"Before the people of Eorzea can recognize you as a full-fledged [JOB], you must prove yourself a capable [CLASS]. The [JOB] job quests will become available once you have reached level 30 and completed the [CLASS] story line."