For lower level players, fights are importing. Because they only offer between 1 to 6 experience points per stamina point, fights will not really help you to level up. However for players with a lot of stamina points, lots of health (or money to heal), fights can help make a difference. Note: If you fight too often or keep hitting the "Fight Again" button, you will make enemies. If they snuff you, you can lose just as many experience points.