God, I feel so sad for you.
Why would you ?
Better for him .. caffeine is addictive and not healthy.
Besides that , I don't get the whole coffee-thing .. sure a coffe with milk and sugar tastes ok but a warm chocolate drink or any kind of tea beats the taste of coffee by far.
And people who think black coffee without sugar tastes good either have a very weird taste or just like it because they are so used to it / addicted to it.
Things that actually taste good are those that children usually like.. and children don't like coffee or beer. If you eat/drink anything regularly you might start to like it .. this is actually something that can be developed over time. Especially if there's something addictive in it like alcohol or caffeine ..
PS :
Whiskey just like any other liquor does NOT taste good