Legalization of Marijuana in Florida

I am a student in florida studying the plant called cannibis. my first views on marijuana were normal, i thought it was a dangerous drug that would kill brain cells and give you cancer like cigarettes. Then i actually started doing research on what others have found out about the effects of marijuana and they were surprisingly different than what i thought. obviously by now we know that colorado and a few other states have legalized marijuana for recreational use and i think we should do the same. Marijuana is a safe and beautiful plant that has many medical uses and if there is truth to what science has proved why should we even for a second be in denial of something that can cure pain or even major deseases. please sign this petition for the people who want to be healthy, safe and have something that can relax them on a hard day at work. I think the reason this plant was illegal in the first place was because they took it out on the people who were abusing marijuana, those people should be punished. But for the people who want to sit at home and smoke a fat one and do no harm, should be allowed to. What are they doing wrong?