A violent or peaceful approach to responding to situations tends to persist through a lifetime. Aggressiveness and intelligence are equally stable and persist through a lifetime. Aggression at age 8 normally correlates with similar behavior in adulthood. In a similar way, agreeable children, who avoid aggression and do well in school, have good mental health, are likely to exhibit the same traits in adulthood. For instance, physical punishment teaches that violent reactions are the way to solve problems.
Aggressive kids come from aggressive homes.
This aggression has been tracked through generations. Entertainment media, certain types of toys, certain types of movies and arcade games promote and glorify violence, as do certain sports like professional wrestling. In fact, these types of stimuli can even overcome a positive, loving, and unaggressive rearing. The preaching of this type of art is that aggression gets results. When we distort or deny our own reality, it suggests we do not like ourselves.