Nanny knows the best websites
So in essence, they are giving your childs details to a much wider audience without your approval, that audience has to pretend to be virtuous and not visit dirty websites, drink to much or otherwise be unfit. If they said otherwise, they would not get the job, but yet the stats say they most certainly do visit dirty websites and occasionally binge drink like the rest of Britain.
i.e. the people working in these charities, hospitals etc. most likely are normal people not some the virtuous superheroes that politicians imagine in their twisted minds.
They are giving out your childs details because YOU are a threat to your child. Based on the fact that Baby P's mother was a threat to her and you are a mother, so by inference, you are Baby P's mother and it's far better to hand your child's details out to strangers, charity volunteers etc. rather than let you murder your child.