Nobody would make you use them for that purpose if you didn’t want to. What is the point in restricting them so that you can’t use them pre-60?
The main purpose of pit isn’t leveling people 1-60 yet if you’re in a group they let you enter a pit when you aren’t yet 60.
I see no reason to deny a solo player the option of the high density constant combat from a compass if they’d rather power level.