When I played ffxi, the only parties I could find thoughout the entire leveling process were all low level newbie zone ones in the dunes and quifim island. I never got to use/practice my higher level skills, so I would have played terribly if I suddenly managed to get into a level appropriate party.

I truly hope that this game is not forced to implement level sync. I want to see new
scenery/monsters/challenges as I advance in level, and practice my nearly learned abilities.