...If everyone went ahead to do things personally then there won't be any scope of a systemized channel and possibilities of having endless problems won't be able to be ruled out ...
You make it seem like nothing great can be accomplished without government, but the reality is that most of what humanity has accomplished has been outside of the control of government, and much of the accomplishment has been done in spite of government.
It is not as if things can't be done without government but we know it is not really possible to get people together in one accord without one form organization. The organization that will be respected to carry out functions to that group. I'm saying that this is the role that "government" perform and this why taxes are levied to get the roles performed.