If they write essays with it and the teacher is not checking their actual knowledge, the teacher is at fault, not the AI. AI is literally just a tool, like a pen or a ruler in school. Except much much bigger and much much more useful.

It is extremely important to teach children, how to handle AI properly and responsibly or else they will be fucked in the future.

And what exactly is the difference between researching shit sources on plain internet and getting the same shit via an AI, except manually it takes 6 hours and with AI it takes 2 minutes?