As for the tongs, that may take a few feedings at least. Even Kings will choose safety over food. At that size, like mentioned before, everything looks like a predator. So they'll be more inclined to hide and wait for the next meal than risk being "picked off" by the larg predator with tongs.
Trust me, you'll see that confidence grow quickly though and your King will display that feeding response in no time.
I swear my boy Django looks like he drank a dozen Red Bulls when he smells his food. He's hilarious!!
That makes sense. There’s only so much bravery you can ask of a little hatchling that’s just moved in.
Still, it’ll be nice to see her gain some confidence with feeding eventually