If this coin just for educational purpose only it will acceptable, nothing wrong with your question, maybe this guide will help you
*** Complete Guide on How to Create a New Alt Coin Update 2018 ***. Don't use this tutorial to scamming people or spreading any malicious programs.
i would advise you to educate yourself first
We can't blaming any question like this, we don't know what he wants. Maybe he want to be a coin maker for his career in the future, like you say, he is very young, but maybe he have a passion to build a coin for educational purpose.