Well, the law doesn't require it even if it's their office's policy. I was led to believe it was the law and so I had no choice. That was the only reason I signed it.
I don't know if it has ever been used against anyone. I'm sure every parent who signed it is taking the best care possible of their children, so there may not be cause for anyone to wave it in their faces. My DH was telling me about a child who left his home in the middle of the night to go to the store across the street and play with toys. It's not like his parents didn't lock the front door, but he was taken away from them by CPS anyway. I'm sure if they signed something like that, it would be used against them in a heartbeat to 'prove' they don't care about their child's safety. It's just not fair that I was manipulated into signing it and then it should stay in her records. If I believed it, that would be one thing, but I didn't then and I don't now.