Why?

Why is smoking and growing weed illegal? It's just a plant. I could grow and roll some cabbage and not get in trouble but if I grow and roll another very similar green plant, I'd get in trouble. It's purely natural. It came from the ground. It's green, it's eco-friendly. It's just smoke.

Same thing with cocaine. It grows naturally out of the ground. So what if I want to snort something from a plant up my nose. Is smelling the aroma from a rose any different than snorting cocaine? Back in the day they gave cocaine to kids all the time at the dentist to ease the pain. I wanna ease my pain too with some plants.

And what's the deal with opium? Hmmmm morphine.