In February, Phoebe Moon’s parents snapped a photo of the nine-month-old baby carrying a teddy bear on a plane to Miami.  “It was Phoebe’s first holiday,” said Phoebe’s mother, Aimee Moon, during a Zoom interview from the United Kingdom.  Once they arrived, they boarded the Royal Caribbean’s Symphony of the Seas—a ship that promotes activities for the little ones online.  “We…