I can add more in the list:
Training provides dogs with the basic good manners we all want—from polite greeting when guests arrive, to walking nicely on the leash, to coming when called.
A trained dog is a fully participating member of the family—what a gift for all of you!
A trained dog joins in the fun when company comes, accompanies the family to the kids’ sports games, goes with you to visit friends and relatives, goes for hikes, swims, and everything else the family does together.
Training enables you to choose from among a broad range of activities and dog sports to participate in and enjoy with your dog such as dog agility, Rally-obedience, dancing with your dog, tracking, search & rescue, skijoring, sledding, water rescue trials, obedience, carting, reading programs, therapy work, and a nearly endless range of fun and philanthropic things to do!
And training dog is not that hard. But of course some
pet supplies are needed, like hoops, playpens, etc. I bought some dog supplies from crazysales to train my dogs. Although they can't do some amzing tricks because I am no professional, they follow my order and listen to me trustfully now. We all have fun in the training. Having a trained dog is a joy for both you and your dog!