Unfortunately it is not possible to protect children from the stupidity of their parents, and the parents of both these children seem to have stupidity in abundance, if not worse.
The CPS may have decided that it's not in the 'public interest' to prosecute Alfie (although they don't seem to have even considered prosecuting Chantelle, the older of the two). How about prosecuting the parents? And, for that matter, taking their children into care?
That a predictable section of our media are bent on chucking money at the families in question is not only singularly unedifying but raises the possibility that this echoes the Karen Matthews case where financial gain was the motive all along.