People enjoy the psychoactive effects of alcohol for various reasons. It provides a sense of relief and disassociation from reality. A sense of adventure or perhaps a spiritual search is often given as the causative reason for alcohol consumption.
If people have problems in their life I don't see why a simple escape from reality is a problem. Yeah, it can be a health problem, but it's their choices that matter. If they feel that it can help them, then i'm all up for someone trying alcohol.
Also yes people do enjoy the taste of alcohol. Just like some people think water has a taste and others don't. Everyone has their on taste.