Even though Iggy's parents cannot see or hear Skin, he still manages to impart a sense of calm and reassurance when it is needed. We've also seen Seth do this in the past with Peter's mom, so it could very well be considered yet another hidden Guardian ability.
And thus we reach what could be a significant turning point in Iggy's life. We've seen how he looks a few years down the road in Peter & Whitney, so now we get to see how he gets his start in high school sports!