Are American Cocker Spaniels good family dogs?

Yes, most American Cocker Spaniels are good family dogs. There is a reason the American Cocker Spaniel was the breed depicted in Lady and the Tramp and the classic Dick and Jane book series; they are great with children and make excellent family dogs who are equally happy going for walks around the block, playing in the backyard or cuddling on the couch.
These pups are the ultimate sweethearts who get along with kids and other pets alike. Like with all dogs, it is still recommended that you supervise interactions between young children and dogs to keep both the child and dog safe.