(Please excuse my bad grammar ,writing ,and spelling)
After watching a certain anime ,and other posts on the fourms I feel like there should be a special perk/upgrade for players who decide to remain an adventurer after reaching level 10.
Players who decide to remain an adventurer unlock a new adventurer perk called skill learning. An adventurer could learn skills from the factions and subclasses. To learn a new skill perhaps the player could do special quests to gain the faction leader or subclass trainers respect .To pervent adventurers from being op any learned skill will be 30-50% weaker than the original skill.
The adventurer could have a limit of the possible skills he/she can learn to prevent Adventurers from being op . Adventurers can only learn one skill from every faction and subclass .Either that or Adventurers can get some kind of copy skill.
I feel like adventurers past level 10 should be like an all packaged deal capable of all roles offensive,defensive and suppotive.
Of course if this were ever to be added to the game this incourages more adventurer gear aswell.