Informing and Interfering

I read this article about a group of moms that were helping each other out by watching each others’ children when needed. One of the moms that watch the kids before school received a letter saying that she is violating a law. When did something so small like helping someone out become a big deal? As a future mother, I think I should have the right to say who I trust with my child. I think it’s ridiculous when you can’t even watch some one else’s child without the law interfering. However, I would appreciate if they told me who was capable of watching my child, especially because there are sex offenders and abusive people out there. If I then would leave my child with that person, the state should be able to fine me for my mistake. But where do we draw the line between informing and interfering?