I don't get this whole commotion with LLMs and education. Isn't a Show & Tell and presencial classes enough to weed out the cheaters? LLM is a killer for homewo

I don't get this whole commotion with LLMs and education. Isn't a Show & Tell and presencial classes enough to weed out the cheaters? LLM is a killer for homework but not when you are in a class with a teacher present.