Think of it this way : You can achieve gains without requiring to practice, thus adding to the fun. In real life, you will learn more from real experience rather then non-risk situations. I'll learn how to shoot someone better in 15 years of warfare then 3 years of target practice. How could you possibly master every weapon fighting wraiths constantly that pose no real threat to you? How could you be a master of all weapons, bash, trip, and all defenses at 22 years old without having done anything paramount enough to earn such skills? I hope that helps .