Complex sentence: K9 Buddies are dogs that are placed with visually impaired children as pets, giving the youngster not only companionship, but the opportunity of caring for a dog, helping them be more prepared for the responsibilities involved with having a Guide Dog someday.
Split into simpler sentences: K9 Buddies are dogs that are placed with visually impaired children as pets, giving the youngster not only companionship, but the opportunity of learning to care for a dog. This experience helps prepare them for the responsibilities involved with having a Guide Dog someday.