Why do people want more?
Before answering this question I would like to ask you what your future plans are? If you are right now studying in your country, why do want study in a foreign country where better education is being provided. What car do you have? If you already have a car why do you want to buy another car?
All this answers my question. It is our human nature. We human beings are not satisfied by the things which we have and no matter how good the things we possess are, we always want more and we want something better. This is the thing which gives birth to the economic problem.