For the health and wellbeing of your dog, training should really not ever be considered an option when owning a dog. Well trained dogs are more likely to be behaved and listen, be void of behavioral issues, be good in public, and are less likely to bite. Owners also have a much closer connection with the dog when the time is taken to form a relationship through training.
Herding is one of oldest canine activities available. It has real world applications and is still in place for viable farm assistance in many places. For urban individuals, herding has become more of a training activity for competition for those breeds of dogs with natural instinct.
When one thinks of the bulldog, the image that first comes to mind is probably that of the English Bulldog, with its squat build, round head and distinctive “face that only a mother could love.” But there is another kind of beloved breed of bulldog: bigger and more athletic, and ruggedly handsome where the English Bulldog is charmingly ugly. This is the American Bulldog, a breed that almost literally came back from the dead to become widely popular as both a working dog and a family pet.