Why do Scholar's job quests still require a level 30 Arcanist to start?

[Rongway]

I understand that it may be programmatically difficult to fully separate Summoner and Scholar in areas like experience points,

(Nonsarcastic) What makes you think this would be difficult? It should be (still nonsarcastic) easy:

• Create new blank job.
• Copy current SCH attributes, actions, and traits to new job.
• Make SCH unlock quest set scholar exp and level to Lv30 values so that new scholars begin at Lv30.
• Grandfather all people who already have SCH unlocked:
• for each character
  • if character.scholar.unlocked
    • character.scholar.exp := character.arcanist.exp
    • character.scholar.level := character.arcanist.level
  • else
    • character.scholar.exp := 0
    • character.scholar.level := 0

so I'm only suggesting a partial change in one particular area: If Scholar has almost nothing exactly in common with Arcanist, in some cases even losing some skills that Arcanist had, can Scholar's job quests at least no longer require a level 30 Arcanist to kick off? One of my friends who only likes to play as healer jobs spent a while leveling Arcanist to unlock a job that really had almost nothing at all do with the prerequisite class, so couldn't Scholar just start via a level 30 job quest that can be commenced as any previous class or job, much like how say Red Mage's first quest can be initially started by anyone as long as they're at least level 50?

I'm not saying that Scholar and Summoner have to be completely isolated from a programmatic standpoint yet, since they could still be tweaked to level up together if that's needed depending on the current state of the game's massive code library, but at the very least, it seems like the job quest's class prerequisite shouldn't be needed anymore.

Scholar has some thematic and lorey reasons for requiring ACN. They can be changed, of course, but that would be more work than just the easy fix outlined above. It should be quite easy to make SCH its own job with its own experience and level without having to change any of the ACN and SCH lore at all. But if you want to go farther and disentwine them to the point that SCH doesn't require ACN at all, that's going to require bringing in the writing team and taking some dev hours from them.

But in terms of "more work", I think ultimately what they should do, besides the simple decoupling of SCH from ACN, is make the AST DRK MCH jobs unlockable at Lv30 outside of Ishgard because some people rush through the story to get to Ishgard just so they can unlock one of those jobs, only to be sent back down to Lv30 and unable to continue the story until they catch back up. Even if there are no additional quests between the Lv30 unlock quest and the Lv50/Lv52 quests, just being able to unlock them at Lv30 and continue the story uninterupted would be phenomenal. I think spending dev time on a single quest for each job to unlock at their starting level would be well spent and a much larger QoL change for healers than reloring SCH, and would give tank and healer players each three options from Lv30.