Some cats appear to take on a guardian role to some children.
Here is a story in the Daily Mail about a stray cat that encouraged an autistic four-year-old out of his “shell”. The cat appeared to be watching over the autistic child and would offer him comfort when he became upset.
A second story two years earlier in the Daily Mail was of another stray cat that had adopted an autistic child. When the autistic child went away to Egypt the cat vanished (perhaps looking for him), and all the progress made thanks to this cat, vanished with it. The happy ending was that the cat was found.
A YouTube video shows the relationship between a cat and an autistic child, with the cat appearing to take a guardian role when the child is climbing up to a wall. The cat appears also to be encouraging the child to get down from where he is climbing.
Finally, another YouTube video shows what appears to be the efforts of a cat protecting a child from a babysitter it thinks is a threat to the child.