Considering how AI has a tendency to lie I'm not sure giving children an AI toy that only read wikipedia pages while occasionally just making shit up without understanding how to frame what it says in way appropriate for children would be a great idea either. There's a lot of very adult and child-unfriendly things on wikipedia. I don't think I need to be a Puritan to not want my six year old told about Unit 731 as a bedtime story.
I'm pretty sure that it's a terrible idea from a privacy standpoint alone though.