When you are told to write an essay about WW2 it's not because your teacher needs info about WW2 but because they want you to read, parse, search, filter information and organise it in a logical manner. If all you do it type a question in chatgpt you learn nothing of these things that will be very useful in life in many situations in which you won't be able to ask your AI overlord for a quick answer.
You go from being a swiss army knife to being a butter knife without handle, it's all fun and games as long as you're asked to cut butter but when you'll have cut a steak or open a beer bottle you'll have a hard time.