I will admit that it wasn’t that long ago that I myself didn’t understand this distinction. I did it wrong, in public, and was called on it, and it was embarrassing. But I am not a professional writer.
You see, Dear Readers, it turns out that “disinterested” and “uninterested” aren’t actually synonyms. I don’t know what it is about “uninterested.” It just sounds like a fake word to me. So I avoided it, and used the classier-sounding “disinterested” incorrectly.
Now that I know better, I was super-curious about what this article might address. I figured they were asking parents to buy into something and then thinking about fining or otherwise depriving parents who failed to do so. But no.