Not just AI, but an easier way for developers to ensure COPPA compliance. If anything this leads to more privacy, as it is already illegal to store a bunch of kinds of info that can be used to market to anyone under 13. Right now developers have to ask the users age whenever they create an account, install a game/app, or visit a website. Theoretically, this could get rid of all of those prompts.
Honestly, I'm tempted to say I'm a child on all my devices if it will automatically prevent cookies and other methods of tracking/advertising.