Should Drugs Be Legalized

I think drugs should not be legalized. Why, if the legalized drugs, it would be like alcohol. I said that because you can drink alcohol and not be consider drunk if your not over the legal limit which is actually 0.08%. So image if the had a limit for drug use. People would take advantage of the situation and say "Oh i'm not over the blood concentration level for smoking marijuana" so they wont get charged. Ridiculous as it sound no. You will have doctors, teachers, and so forth coming to work a little buzz. Just so they can make it through the day. Not to say they aren't doing it now.