Do you know saddest part in all this?

These kind of jobs might be the only way those students can earn enough(to pay for their education) in hopes of a better life later. I've been is such a situation before, and it totally sucks. But that is the only available option before you. Imagine having to this, when you have no other options left. I mean these people are not lazy, not stupid and very capable. But they have to do this because of scarcity of opportunity.