It is not proven whether violence is a result of drug use or an inherent trait of the individual consuming the drugs. Correlation doesn not prove casualty. Clean people need health care, are violent, and neglect their children as well. It is not provable that keeping drugs illegal curbs these effects in any way. However, legalizing drugs allows quality standards set, also reducing percieved drug-related health costs, as well as providing an additional tax-revenue base that could potentially hundreds of billions of dollars per year in tax revenue as well as reducing superflouous governmental anti-drug spending.