My son is almost 11 years old.
As many other "hot subjects" such drugs, porn etc, I always prefer to talk and to give him orientation. It's not different with AI (including ChatGPT and similar).
I didn't find AI a difficult subject to deal with him, because we (he and I) have a robotic project, and one of the jobs includes the use of programmable circuit board (microcontroller) + AI.
Of course, I always point to him "pros & cons", so he is aware about potential AI dangers. And I trust him. That's it! I give info + orientation, I focus on strengthen his responsibility, I trust him... and the rest is "c'est la vie".
I do the same with subjects related to drugs, porn etc.
But of course, each case is a different case, I'm aware that I have a very special relationship with my son, and what works for me and him might not be a solution for everybody.