They appreciate the taste of the various beverages, not the alcohol (although, to be clear, the alcohol does contribute to the various flavors). Very few people drink alcohol, rather they drink things that happen to contain alcohol.

You might be thinking that I'm being pedantic right now, but having a firm grasp on this concept is important if you wish to understand why people drink what they drink.

Consider how silly it would sound if we talked that way about baking soda.