---had to split my post in 2---
Long story short, RP Players tend to make a back story that fits the world lore, and then RP as things happen to their character. Having RP of someone skilled is fine, but no one wants to RP against a god unless it's apart of a storytellers campaign, which I've seen, yes RP players will sometimes have a member of their RP group RP as the WOL, an official of the city, or even a Primal or god. But these are a part of long ongoing RPs, and the RP God is a temporary character used for a plot device or other storytelling tool. These characters are usually scripted as well.
It's always fun when a Default Midlander shows up in the level 50 Warrior gear, with the name Hero or other cheese name, to a private house, and everyone has to react to the guy being literally THE Warrior of light. (happened 5 years ago for our FC, the sky pirate one, he was asking our help to face the Void Ark. Yes, our Guild leader used a Fantasia and a temporary name change, just to RP out why we as an FC were going to do the Void Ark. It was a good RP session as well, we then had a huge laugh in Discord about it. That was near the end of me doing lots of RP as well. I kind of miss having a good group to RP with. My fault really, I was still splitting time between this and the Irvine based MMO.)
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So basically your idea works, but exceptions are made for long term stories that work just like a D&D game. With a Story Teller, and a party of adventurers/crafters playing out the story.
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BTW because it's fun to do, my 3 mains:
Marielle Sansoleil - Black Mage Ishgard Elezen grew up in Ul'dah
Mary Jigoku - Dancer, Au Ra Rean, She was born in the village of Sui-no-Sato, in the Ruby Sea, she left home at 16 years old and found her way to Kugane, which eventually lead her to travel to Ul'dah where she started her adventurer career. She is currently only 18 years old. Her birth name was Mariko Shisui, she took the name Mary Hell due to 8th-grade syndrome when she left home.
Caitlyn "Bhump" Aliapoh - Miqo'te Keeper of the Moon -Isekai RP:Born in 2030 in the Bay Area, to North African and Latin parents, Azeem Garcia lived in a world that was dying, the Phantoms had all but killed most life on Earth. Azeem went to bed one night with his husband and woke the next day in a wagon heading to Ul'dah. With that as a premise, I am using this character as a leveling challenge, and streaming it to twitch, also I am writing a novelization of her leveling adventure. <- Not using her for any active RP because she is going to be the WOL, in fact, I named her Human self Azeem because her husband in that life was named Emmet. Yah, not even going to be subtle in the story, as I want that dynamic that Emet-Selch and the WOL, both are reminded of life on a world long destroyed in the forth Umbral Calamity.
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Additionally, I have a whole list of high-level alts, for more specific RP.
Ashett Tholl - Dwarf from the First RP
Bhump Dabhump - Cat Girl predecessor to Caitlyn "Bhump" Aliapoh, less Isekai, more Sky Pirate.
Marhiel Aloc - Reimagining of my old 2nd Ed AD&D High Elf War-Wizard. All my Mary/Mariel, Marielle, characters are based loosely on my AD&D character. Mary was not her first name, and I can't say what it was because I can be an idiot at times and not notice a thing for years, and couldn't figure out why people laughed when I would say her name. Note I'm bad with names and use to name things based on the reverse spelling of a thing I saw. In this case, it was a can of cola. You can figure it out.
Dhuem Bhuenay - doom bunny, made the character as a lala way back when.
Llis Yesirel - Bunny Girl for fun
Mary Winter - My first character was a Lalafell in 1.0, now a femroe.
