The idea that a substance should be illegal is unreasonable. To allow some drugs such as alcohol for instance to be legal but to declare others such as cocaine or cannabis illegal is hypocritical. If an 18 year old adult wants to utilize a substance to alter his state of being then who is to tell him other wise. Should it be against the law to drive ,operate heavy machinery etc just like alcohol? Of course it should. Should it be illegal to sell to minors? Absolutely. Yet to say an adult can not responsibly partake in a given substance is wrong.
Well , i strongly feel that the presence of drugs is much harmful than the alcohol in humans body . Drugs are designed to alter normal body chemistry. As such, they are likely to cause side effects that range from annoying to downright serious . drugs can lead to certain level of dependency , sometimes turning man into a psycopath or criminal leading in to a serious disorder of law .