This clause establishes a child-specific privacy standard that is stronger than Google's general policy, but parents may not realize they need to read both documents to understand the full scope of data practices.
YouTube Kids collects your child's viewing and search activity, device identifiers, and — if a parent signs in with a Google Account — profile details including the child's name and age, which are used to personalize content recommendations. Voice search audio is briefly collected but immediately deleted after processing. You can pause or clear your child's watch and search history by going to the parental settings section within the app.