It’s not awful because it has been addressed before. Sure, if you can create child porn at your demand there’s no reason to go look for the real thing, at least in theory.

There are a couple of problems though. How would the model be trained? It has to process child faces. This is a huge red flag by itself. The second problem is that it might get more people addicted to child porn. If it becomes so easy to access who can tell how many more will find it attractive. And then you’ll end up with a much bigger problem than the one you had when started.