When Olga López heard she would lose access to her collection of role-playing chatbots, she felt a surge of emotions: sadness, outrage, bewilderment.Olga, who is 13, turns to her chatbots from artificial-intelligence company Character.AI for romantic role playing when she doesn’t have homework. Like the company’s other under-18 customers, she was notified in October that she would no longer be able to have ongoing chat interactions with digital characters soon.Copyright ©2025 Dow Jones & Company...