Ask a five year old what a paperclip is for and you will get forty answers. Ask a fifteen year old and you will get one.
This is not a failure of intelligence. It is a success of training. Twelve years of schooling teaches an accurate and useful lesson: there is one right answer, it is already known, and your task is to find it.
The skill being trained is retrieval. The skill going untrained is generation.
Both matter. Only one is assessed.
What replaces it
A studio runs on the opposite premise. There is no answer sheet. The practitioner does not know how the work will end either. That uncertainty is not a gap in the teaching. It is the teaching.