Think about it, The United States is 229 years old and so is the Constitution (228).
Drugs have been illegal for 70-90 years. In that time, we've gone through wars like Bachelor Degrees. George Washington would be the first person to march on D.C. when he is released from jail after 3 to 5 years, because he was caught on the street with a dimebag, payed his fines, and then was caught again with a necklace made out of marijuana, after he was released the first time.