Exactly, so presumably in the case of Sarah Payne you'd agree that the parents also didn't provide 'adequate care .... to prevent someone else taking the child' - she wasn't under adult supervision, she was probably either the same distance if not further from adult supervision.
How about April Jones? She was 5 and playing in the street without supervision, surely she should have been supervised?
Obviously I don't for a minute put any blame on the parents in those cases, abductions happen for a variety of reasons, including opportunity, whether the opportunity is like that in the case of James Bulger, where his mum probably took her eyes off him for no more than a split second in a busy shopping mall, Sarah Payne where a child was left under the supervision of a minor in a field close to home, or Madeleine McCann where her parents left her sleeping in her apartment for a half hour without checking her, its secondary, the ultimate responsibility lies with the person who took the child, but it's incredibly easy to start pointing fingers, or apportion blame in all those cases, as I've said hingsight is 20/20.
The major differences between the cases in my view is that in the Mccann case there is no villain, so a lot of the time peoples anger is aimed, either directly or indirectly at the parents.
If you asked Sarah Payne today if she regrets allowing her 13 year old to supervise her daughter, or if Jamie Bulgers mum regrets taking her eyes off him for a minute I'd imagine they both probably do, thats not to say what happened is their fault.