Obviously, the Kin and Ebou Dar wasn’t written when the girls first arrive in the Tower as novices. Also, the girls spent so little time in the Tower that there was little time to explore that world.

There should be an expression of frustration against the Aes Sedai, particularly among novices, something like:

I’m so tired I wish I could get as far from here as Ebou Dar.

phrases which the novices themselves don’t fully understand the meaning.

I’m sure y’all can come up with better phrases, let’s hear ‘em. 

I'm so tired I'd sell myself to the sharans. Possibly if RJ had lived write the prequel trilogy, there would have been more of the tower.

I’m not sure exhaustion is a motive for entering slavery. Debt used to be. 

Maybe to get away from it all/ disappear from the face the earth/ do the impossible:

I want to sail across the Aryth Ocean.