Association between drugs and family violence.

I read an article about associations between drugs and family violence. It says that there is substantial support for the notion that alcohol and drug use is related to violence in general and to family violence in particular. Research on homicide, assault, child abuse, and wife abuse all find substantial associations between alcohol use and abuse and violence. But there is evidence from cross cultural research that alcohol is not a primary cause of the violence. If the pharmacological properties of alcohol are the direct causes of behavior after drinking, then there should be very little variation in drinking behavior across cultures. Drinking behavior is different from people in each society believe about alcohol. lets say, if a culture believes that alcohol is a disinhibitor, then people in the culture tend to become disinhibited. On the other hand, if the culturel belief is that alcohol is a depressant, drinkers become passive and depressed. It meant that the belief of drinking alcohol directly become a cause of violence is wrong notion and just a excuse when we drink alcohol and perpetrate violence toward somebody.
 When I was a college student in Japan, I used to visit to a institution where children ,who have mental illness, went as a school. Because my major was psychology and it was a part of lessons to know treatments for these children.
I couldn't talk to any of the children but could hear the story why they were in the place. There was a girl who doesn't have parents, she lost her mother due to an accident and her father was in a rehab for alcohol abuse after he arrested for abuse to the girl. Her father became alcoholic since he lost her wife. I asked a staff of the institution that why her father was in rehab for alcohol but going to psychiatric hospital to cure his mental illness. The answer was that he was out of control when he drank ,therefore he must have needed to stop alcohol abuse first in order to rehabilitate and live with his daughter again. I was thinking that it was not a fundamental solution for him. The primary treatment should have been to cure his emotional damage of losing his wife.  As the article says that the influence of substances or alcohol on the likelihood of violence is mediated by social factors and personality factors. I learned a lot with this article and reconfirmed my notion of relationship with alcohol, substances and violence.