What are they doing
"Where's the Money".
Google on Thursday was sued for violating children's privacy through a program it designed to protect children's privacy. The complaint [PDF], filed in a US federal court in San Jose, California, contends that Google and its AdMob mobile advertising business deceived parents and children, and violated the law, by collecting …
Developers should design their UX like big companies do - create a special area for parents to interact with their children's content. That area makes parents an adult proxy for all child marketing targeting.
It's a bit like candy flavored vapes and liquor. Only adults can buy them but you know where they're going.