When a dog enters a home, there needs to be a primary caregiver assigned to prevent future chaos and neglect. Different people in the family need to take on different roles to make sure everything gets done. If roles are left up to chance, the dog may end up not getting what it needs to survive and live a good, healthy life. It is always best to determine the primary caregiver and everyone else serves the secondary roles. This will make everything run more smoothly when the dog needs care.