Misuse of alcohol is of course a serious problem. But there is no evidence that trying to ban it would make things any better, and plenty of evidence that to attempt this would be totally ineffective and would introduce other terrible problems - notably the history of Prohibition of Alcohol in the USA, and perhaps even more clearly, the nightmare consequences of the attempts to suppress the use of other psychoactive drugs.

Of course it can be done, at least to some extent, if you have a society like Saudi Arabia, but that is quite a price to pay...