I have a dayhome with 2 dogs (10 years and 2 years old) and 3 cats (1 year - 13 years old). My parents all love the fact that their children learn about animals, and how to interact with them appropriately.
Be sure to learn the signs of stress in a dogs face, and that children never put their face in the dogs face. Puppy school instructors are great at helping you learn these things.

All the best!