of discretionary stimuli to control behavior. Not necessarily laws set in writing, informal norms represent generally accepted and widely sanctioned routines that people follow in everyday life. These informal norms, if broken, may not invite formal legal punishments or sanctions, but instead encourage reprimands, warnings, or othering; incest, for example, is generally thought of as wrong in society, but many jurisdictions do not legally prohibit it.

Norms may also be