When we regulate something we do NOT automatically condone it's use; the regulations concerning alcohol and tobacco are there to protect us from the vast increase in criminality that would otherwise exist if these substances were prohibited.

A regulated and licensed distribution network for all mind altering substances would put responsible adult supervision in between children and premature access to drug distribution outlets (illegal street dealers). Regulated and licensed distribution would reflect and respect society's values, thus preventing children obtaining easy access to these substances. What we need is legalized regulation. What we have now, due to prohibition, is a non-regulated black market to which everybody has access and where all the profits go to organized crime and terrorists.