Some people have owned dogs most of their lives.They have experience with training, using whatever methods they have learned.Leash train, treat train classes whatever;but still have issues with the dogs behavior.Some dogs continually run away whenever given the chance.Some will not walk well on a leash and pull and jump.They just dont listen 100% of the time, and that makes owners fearful.One of our dogs in class is a 4lb miniature poodle MINI. She was well trained and knew lots of commands. She would still run away.So her family brought her to sit means sit.She does not run away when off leash and she follows her commands more readily.For many people just taking away that fear that the dog will get hurt due to running is well worth their investment in trainig. This family travels alot with their dog and mini stays right with them at all times. That makes for a whole family of happy campers!