Originally Posted by
Elexia
You never played FFXI I'm guessing? Might be where your disconnect may be coming from. "Advanced" classes simply mean they're not basic already unlocked classes, they're something you have work toward.
Also no, jobs =/= advanced classes, they're an extension of it's base class, an advanced class is something you could only use after doing a quest. Given the way this game works, the only way that would be possible is to lock out crafted weapons to level 5+ and you can only get the 'weathered' weapon through the quest.