If you don't mind feeding bugs and your adult still likes them, I find nothing wrong with that. As long as he still eats some CGD, you won't have anything to worry about.

I think they can live on CGD alone, esp since there are some formulas with ground up bugs in them, but if you can provide fresh, live bugs, that can't be a bad thing either. If they are part of a well rounded diet.

Honestly, I chose getting a Crestie in part because I've heard they can live forever on those CGD smoothies and no bugs needed. I don't like bugs. I HATE crickets and the thought of roaches didn't make me feel all happy either, LOL.

But once I had Smeagol and saw much he loves bugs, I started looking into it more. I did some research, and those Dubias really aren't that bad. I sort of like feeding them well, they are so easy to take care of, and not messy at all, nor do they stink. Maybe if someone has a ton of them and there are dead ones in there, or spoiled food, but so far there is nothing to clean in my bin. I think I ever even found ONE SINGLE dead one. It looked as if it got stuck halfway when molting and died.

The only thing is, when they are in the feeding bin, they don't often move super fast and Smeagol likes his bugs fast and furious, LMAO. But in a way this isn't a bad thing. I know he won't overeat simply by grabbing everything that moves fast. He is quite deliberate and thoughtful about it, LOL.

My mom is coming to visit soon, I wonder what she will think of her daughter caring for a bunch of roaches, making sure they eat well

You are doing great with your Cresties, and your little whipper-snapper will gain a bit of weight and confidence, you'll see.