Earlier quoted context omitted.
If your prototype of the «knife» is all blade and no handle, fix it and implement the handle. If the creation is planned, you will have also thought of the handle; if it is a serendipity, you will have to plan the handle afterwards.
Pretty sure it doesn't matter to the child whether the knife has a handle or not. They'll eventually find a way to cut themself.
LLMs do not deliver (they miss important qualities related to intelligence); they are here now; so they must be superseded.
There is no excuse: they must be fixed urgently.