Of what you posted, though I don't drink coffee, don't smoke, I do get some caffine.
Alcohol abused is the only one I see there that has an issue. We agree that alcohol abuse is wrong.
Ahhhhh but do we both agree that alcohol abuse is a much, MUCH bigger problem than legal or illegal pot has EVER been?
That is the point (supported by an avalanche of evidence) that you are in dire need of understanding.
I for one think that adult folks should have the right to make there own decisions about what sortsa recreational chems they wish to ingest - and make no mistake about it, Mr. Teetotaler, caffeine is a powerful mood-enhancer. Which is why humanity has been fascinated with it since its initial discovery.