Cannabis is a natural plant we had no input in making it. It's here for our use why do we have to come up with reasons. If nature didn't want us to have it. It would just take it away it has the power humans don't. Every time nature does not ask it does what needs to be done for the earth not humans. We are just an evolutionary cycle of the planet. When we become a big enough problem it will solve that problem too.So enjoy your time as a human no one knows what's next if you think you know keep it to yourself.