I say No.
California is already working on getting rid of people smoking, by making the young stay the forget away from it.
If they would ban alcohol and Tobacco all hell would break loose, because lots of people who used it are addicted, they would start riots and stuff would happen.
That's why its being done slowly.
Also don't know if you guys knew but Marijuana not only Makes you act like a idiot over time of usage and hungrier, but it also increases the risk of Testicular cancer.
And if your going to say that the stuff that there is now has worse effects, well good job your right.Also keep in fact if America is already being called the most obese world would it really help for obese people to get hungrier and eat more?No, if that happens America would be know as the land of the Extremely obese where earthquakes are made everytime someone walks.
TLDR;Nope, it has cons and so do the others drugs and stuff.