They are pushing weed use because they want you fat, slow, and apathetic.
Same with any other mood-altering substance.
Not talking medically-needed; those cases are few.
Speaking recreationally.
Anything that alters your state, in any way, is meant to enhance their ability to keep you subservient, and keep you in their chains.
When will you ever learn?
Don't believe it?
Then, lay down your substance of choice for 2 weeks?