Marijuana is mainly illegal in Australia because our own government fails to acknowledge the benefits & gains that this plant would have on our country. Not only in resulting in the dramatic decrease in crime rate on our streets let alone country, & not to mention that cancer would be a thing of the past due to the cannabis plant to being one of the most effective ways in eradicating cancer cells from the body. Also a wide range of effective products & ways that cannabis can bring to table not only for the people but for our goverments aswell.