you can't run out of quest
at level 21, you can get side quests from both east and south gridania
those quests alone can get you to 25 or maybe 27, that if you're doing dungeons and Fates in between
those are only in gridania, you can get more quests in other regions such as la noscea and thanalan
you can't run out of quest, at least until 40

Quote Originally Posted by Betelgeuse View Post
(continued from previous page)

...so does this mean after getting my main class to 50, all I'll have to level my other classes are LEVES and FATES (not to mention some quests I may have missed with some dungeons here and there)???

Are the area quests not repeatable on other classes? Because if this is the case, I'm in serious doubt I'm going to level another class very high as I do not like 'chasing' FATES and the repetiton of LEVES is extremely dull and actually limited due to 3 per 12 hours.

Also, as I get higher (40/45+) in levels, will I run into the same issues, even on my first class (main) to 50?

Or am I missing something here?
side quests are not repeatable on other classes
however, you'll get bonus exp from Fates and leves on your 2nd class and after
so Fates are the way SE designed it