Should it be legalized?

Should marijuana be legal? I believe this is a huge question that many people ask. I personally believe that it should not be used. It should however be used for medical uses. Many people have health problems that can only be cured or controlled with marijuana and those should be the only people who use it. Marijuana and other drugs have been used for a long period of times and consumed by many. It has became a huge problem during these years but i believe if it was legalized many problems would go away and the united states would make money if they tax the product. What is your opinion on legalizing marijuana?