Right, absolutely. The conditions are also damn stressful, unless you're lucky enough to be at a school with amazing admin and co-workers and parents. That almost never happens.

Then the ones who are good but getting stressed out eventually start looking around and realize they could match their current comp assistant-managing a gas station, and that some of the extra things they've taken on give them experience that lets them gun for non-education jobs with way higher pay... and it's only a matter of time before they leave.