Obviously, ChatGPT doesn't replace school, but for mid school level scientific questions I'd argue that, structurally, it does a better job than frontal 1 to 20 teaching.
The whole group and power dynamic at school is gone. As a pupil can ask specific questions and you're never bored, and you never need to feel inferior or stupid. No one else hears what you don't understand.
A dialog structure is a much better setting to learn for the individual than the typical lecturing one to many approach.