How common is it to break a law before you reach the age of 18/21? Ok I put 18/21 for drinking and smoking and I know drinking is ok at 18 in some places at 18 not others. So how often is it to break a law before you reach adult hood? Also if your country says children can drink and smoke obviously that does not apply to you. However how common is it to drink, smoke, do drugs and steal before legal age?