I think the big appeal is that it’s not a kids show - make no mistake the target audience is kids but it doesn’t treat them like they are dumb and its not condescending so it appeals to an older audience. Struggles that don’t tell kids the world is perfect, parents know everything and society is always on your side. They cry for things that are worth crying about, talk to (character) kids like they are people/dogs, and show how parents also struggle being parents.