It is well documented that the presence of animals, especially dogs, is both physically and psychologically beneficial to individuals of all ages.
Pets are particularly therapeutic for the elderly or infirm, who have become socially isolated.
The pet must be considered. To be fair to a dog, it must have one dependable master, for leadership, consistency, and comfort. Changing staff responsibilities for the pet is confusing. A dog, ranging free in the care center, may eat items dropped on the floor, or may slip out the door to the dangers of the streets. Dogs can be unfortunate replacements for mops and vacuum cleaners, and can become sick or die from dropped medications.