Who decides what a good citizen is

Law decides what a good citizen is.

Exaplanation:

The law states what a citizen is, so consequently it will be the deciding party of what a good citizen is. The government and the public go about following the rules and regulations set by the law.

But few argue that the decision of who a good citizen is ultimately in the hands of the citizens themselves. They are the ones who decide what is required to be considered good and reasonable citizens.