I don't think anyone is trying to get someone who does not want to use non-prescription drugs to do so. If you don't want to smoke pot, don't do it.
I see clients -those who have never used pot or alcohol - with all sorts of horrible side effects from the forced psych drugs they have had foisted upon or injected into them. The drugs are used more to make the client more manageable for the institution rather than to actually help the client in any way.