A Border Collie dog is an excellent companion for a person of any age, for a single owner or a large family with several children. These dogs have an excellent mind, they understand their master perfectly, and can be trained in a wide variety of commands. They love children very much, and in general they love people. You can, without the slightest fear, leave one or more children with a border collie dog, and be sure that the animal will not show the slightest hint of any aggression, and even protect and try to protect your child from careless actions. Border Collies are very devoted to their family, they see the meaning of their existence in making their owners happy and helping them in every way possible.