You can't call a 5 year old a yob. Typical press language.
What if the real story was a 5 year old gets a shot of his brothers boat and hits the swan, causing injury.Kids panic and run off.
I have seen some extreme distortion of the facts in my local press so I would not believe a word of it. Even if it is true, young boys have always had a cruel streak in them, especially in groups. It's in their nature and always has been. Doesn't mean society is collapsing despite what the media say.