There are at least two reasons why crime and deviance are found in all societies. Firstly, not everyone is equally effectively socialised into the shared norms and values, so some individuals will be prone to deviate. Secondly, particularly in complex modern societies, there is a diversity of lifestyles and values. Different groups develop their own subcultures with distinctive norms and values, and what the members of the subculture regard as normal, mainstream culture may see as deviant.