it is good for a country to have a constitution
Answers
a constitution defines the principles upon which the state is based, the procedure in which laws are made and by whom. Some constitutions, especially codified constitutions, also act as limiters of state power, by establishing lines which a state's rulers cannot cross, such as fundamental rights.
A country needs a constitution to state its founding first principles and to constrain the laws enacted by its governments to adherence to those principles. In a constitutional democracy, the constitution as interpreted by its top-level court is the one thing with the legitimate authority to override not only the will of government, but the will of the majority of voters as expressed in a referendum.
As such, it protects the fundamental rights and freedoms of minority populations and disadvantaged members of society that could otherwise be trampled by the popular will.
It also defines the electoral process and the structure of government. It limits the authority of each branch, so that none can usurp the others, and ensures that the reins are handed over to newly elected leaders in an orderly fashion at regular intervals.
A nation’s constitution is its most vitally important political and legal document. Versions of it may exist at its state, provincial, and municipal levels, but none of these are allowed to conflict in principle with the national one. That’s how the constitution exerts a cohesive force that binds the disparate regional values of the nation together, and defines the nation to itself and the world.