Objective quality of behavior

Erikson argues that deviance is NOT an objective quality of behavior; rather, social audiences label deviance based on directly or indirectly witnessing such behavior. In short, deviance is less about statistical evidence and more about the quality of social reaction.  Using drunk driving as an example, how does the audience’s reaction establish boundaries between recreational drinking and drunk driving, especially the legal response to the latter?  In your answer pay particular attention to the age of offenders as an important boundary.