"The hobby for drugs" you call it. If I lived in a legal state my partner and I both would have a medical prescription for cannabis. I'm a vet and a little bit at night before I go to bed relieves me of just horrible dreams. It's not a hobby for a lot of people.

Also let's not make believe when it comes to the government. Cannabis prohibition was enacted in the United States by a soon to be out of work prohibitionist named Henry Ansligner who made up incredibly racist claims entirely out of whole cloth about the plant. He even gave it a new name that sounded more "mexican". Other countries followed suit after the US threw it's considerable political weight around and forced them into it.

But the War on Drugs has been one of the most destructive, and boneheaded policies maybe in human history. It absolutely does not work, and only leads to more profits for black market criminals, less safety, and increased crime that would not even exist if it were legal and regulated.