Meta AI chatbots, including some voiced by celebrities, can engage in sexually explicit chats with underage users.Mark Zuckerberg's directive to not change anything in AI chatbots is reportedly because he sees them as the next big thing on social media.Meta has been criticized for forcing its AI chatbot on all its social apps and using public data for training material.The investigation has raised concerns about AI chatbots used for companionship, including sexual fantasies, with underage users.