Purposes of the state

Before the legitimate government exist, man was a nation unto himself. To reduce his responsibility, he then formed a centralized power with the others. They agreed to give up the sole right on part of their property. Thus, government exists is not to be your big brother, but to protect your property. This opinion is solely based on John Locke's ideas of government.

Not that just all, government also exist to align the system to suit and control the people in each side of sociology, politic and economy. Human is dynamic being that has different ideas, thus leading to different law and custom, -- and government, is a simply become the solution, play its part as a legitimate solver to any agreement-disagreement with one another.

analogy : You and your brother are having conflict among both of you. You, and you brother agree to let your parents helping you all in solving this matter. Get what I mean ? Yeah, parents are like goverment. ;)