A lot of what GPT-4 can return is ideas based on assumptions and beliefs. Who chooses what of these to train the system? Those subtle ideas will then lead students who are mostly children.
The world is very diverse.
Do you want to know how I know you have no idea how grade school textbooks are created in the US?
https://www.rangevoting.org/FeynTexts.html
This was 60 years ago and it's got worse since then.