We want to play the expansions Jobs with the starting character.

[Jaywalker]

Yoshi-P has spoken at lengths about how unwieldly the class system is and how he doesn't like it. I honestly think the only reason why we even still have the class system is because of the 1.x character data. That being said, yes they did do Rogue and Arcanist, so it's not like they can't do more classes in the future. But I think it's very telling that since then, there's been 6 new jobs and 0 new classes.

Fair point! I actually had no idea about that, but it's interesting. Thank you!

I still think that technically speaking it might be a solution to the issue being mentioned here and there's in-game precedent. It might not be ideal/the neatest solution, but tbh as long as there wasn't some convoluted requirement that you suddenly jump through additional hoops to achieve jobs that were previously accessible I don't see how it would cause an issue logistically.