Is it better to start a new character or just simply change classes?

[Rongway]

You don't have a real choice in this. You need level two classes in order to unlock a job. One needs to be lvl 30 and the other needs to be lvl 15. So if you wanted to unlock the job of Warrior, you need marauder to be lvl 30 and glad to be lvl 15. The new jobs added in HW and SB don't need this but the others do.

Starting Friday, no job will require a secondary class leveled.