Indeed, Jefferson argued that every nineteen years government should be revised in accord with the living generation's views. His attitude was that the Earth belongs to the living, not the dead. If the living generation does not find the current form of government, they should be free to amend it. A government which exists not by convention but by contract, which is not empowered to do anything but that which is contractually agreed, and which is limited not by the tension among its powerful agencies or some alleged checks and balances, but which is limited by the individual concerns of every signatory, is a government which must remain one of law, in this case of contract law. The kind of sovereign individuals who would sign such a contract are the kind of people with whom I wish to live.
Contracts have another advantage.
They can provide for individual amendment. If a contract change requires the approval of other contract holders, that is now possible with modern communications technology. However, provision for a variety of standard exceptions and corresponding fees can be established, making individual acceptance of the conditions of government more likely. However, Randy's ultimate point is well taken. The paperwork which precedes the practice of living together may be significant, it may be essential, and it may be written well or poorly.