It is by making good choices that we grow strong in the faith and thus become whole persons in a very broken world. For example, some activities we are free to take part in may not be wrong or immoral, merely a waste of time or money. Our time and energy could be better spent elsewhere. Some friends are worthwhile and edifying, others drag us down. Most contemporary TV shows and movies assume sexual immorality and violence are the social norm.
Much rock music is sadly base and sensual.
Because of our fallen, sinful natures it is hard work, I think, to cultivate a love for genuine beauty, fine art and good music. It's easier to lay back and default towards immediate gratification and the temporarily pleasureful. Perhaps we may find to our own shock and horror that we have become unfit for, and incapable of inheriting, something as demanding as eternal life with Christ. The pleasures of the world not only are ephemeral and fading, our love of them makes it impossible for us to respond to the Father's love. When this happens we lose contact with the only possible source of joy, happiness, fulfillment available anywhere in the universe.