I'm not completely against it Alexia, but that has a BIG disadvantage. It wasn't much of an issue in FFXI because it was quite an old game already when they implemented it, but it will be an issue in a younger game.

That way you make inviting newerplayers and players you don't know in a group even less desirable. If every class can be used at every level, people would rather group with their higher level friends (more experience, more reliable), than actually going out of their little circle to look for classes/level combinations that they need to fill the party.
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