I don't rely on the government making drugs illegal so that I wont make the mistake of taking them. I don't know any rational human being that says that because the government made drugs illegal, they decided not to take drugs. Just because the government didn't make punching myself illegal doesn't mean I am going to go off and start punching myself. On the flip side, just because the government made something illegal doesn't mean its necessarily bad for you. The government is not infallible. If they where to make apples illegal it doesn't mean apples have become bad for you. My main point is that the government has no authority to say what is or isn't bad for you and that their decisions does not impact nor affect that reality.
Marijuana is probably the best example of this. Marijuana wasn't made illegal because of public safety, it was made illegal because of racism. It wasn't justified by throughly scientific and objective research, it was justified with now debunked research. Marijuana hasn't killed anyone from just taking it, and it hasn't made everyone who smoked it a criminal (my definition of criminal is an act that harms another individual, I don't rely on the government to give me the definition of criminal). But worse of all is the fact that the government is hypocritical. Marijuana is a drug that is not directly harmful, addictive, doesn't harm one's rational thinking to an extent that they would commit crimes, and in fact has been used to help those medically and has been studied extensively, and is illegal. Alcohol is a drug that is directly harmful, has killed people from being overly intoxicated, addictive, does harm one's rational thinking to an extent that they would commit crimes, and is legal. Regardless of your beliefs that any drug should be illegal, this goes to show that the government is not always correct in their thinking and we should rely on them for such matters. The government should not be involved in prohibition of anything.