"W-well, you don't need to be hasty! I'm not rude enough to turn down a thoughtful gift! Even if it is for kids!"

This is actually true. If Ignis has noticed how ugly Popp's belt buckle is, when he has a body that is not shaped like a belt, that is why. His gaze is laser focused on the ball. He knows he's one of the youngest people here, playing with a children's toy isn't going to help his reputation on that front especially with all the crying he's been doing.

And YET. Maybe he can blame his draconic instincts? That's probably fair to do, right?