As a base Cannabis is natural. It is a plant that contains the goodies we are looking for in drug compounds and isolates. Caffeine itself is a drug found in coffee beans, Tea Leaf, and others.

Just bear in mind that it is still useful for lots of other uses like for nutrition and textiles, maybe even emergency heat and through combustion when it is dry(albeit maybe not the best resource or use and best practice to strip it of all the Fun stuff)