Is defined as the carnal knowledge of a girl under the age of consent, the age at which individuals are considered competent to give consent to sexual behavior.

Age of consent is defined as a persons, typically a girls , consent to sexual intercourse is valid in law.

An informal structure in a bureaucracy would be something like so-called "office politics". where there's a formal structure set up for the organization, but then an informal subculture as well that has a way of organizing the bureaucracy further. this can be positive because it sets up an added degree of organization, albeit informal, within the bureaucracy.