Re: "Public schools" in Pakistan?
actually, you come across as quite non-serious ( I may be wrong LGB), so perhaps that could be one of the reasons;whereas, see everyone is trying to help you out with whatever little information they have.
There is no harm in teaching for money, no harm in earning some bucks after you graduate and before you take on another vocation( and if you are serious, who knows you might want to be in academia for the rest of your life).
But whatever it is that you have in your mind, please be clear about it.