Basically, the trend nowadays is toward less control over recreational substances. Banning something only makes it even more appealing.
The problem is not alcohol or any other substance, it is why people choose to use it. Some may be depressed, some may want to escape daily stress, others just want to be less anxious. If we address the reasons why a person uses alcohol we can save them. Otherwise, like ChristineVianello said, people would find something to get addicted to.