"While many of us see our pets as surrogate family members, we do not want our pets to feel on equal status with children. In fact, the pet may become protective over the owners and attempt to defend them by attacking the child for yelling or merely playing with his parents." — Dr. Ashanti Woods, pediatrician.
He also advises that you train the dog to be submissive to children.
Not only is this inaccurate, but quite dangerous advice on so many levels. Also, no — licking is not a sign of "dominance" or "controlling behavior".
Pediatricians and animal behaviorists need to collaborate to help keep both parties safe.