Why the role playing? Isn't it easier to accept the chatbot for what it is? I broker the communication between my son and ChatGPT and they don't role-play anything - there's no imaginary friend dynamic going on. He just talks with the computer, because it knows stuff about things he's interested in.
Your son wants to learn stuff and the computer helps him with that. People that want an AI girlfriend don't care about the knowledge and usefulness of ChatGPT, they just want to use it to feel less lonely. Not at all the same use case. Although I agree with you, it's kind of sad that a lot of people will probably use chatbots to make up for no human contact in their life instead of using it to learn stuff and/or to f…
You can ask it to come up with an idea for a dinner and a movie for the evening and then discuss them once they're finished. You know, things people do with actual girlfriends. I'm sure it will be more fun than a robotic selfie and a made up story.