SM, that bill, only concerns physical abuse, and even then the part you quoted, does not have provision to have force of law in Scotland. (United Nations convention on the right of child)
and even when in place, it only affects Scotland, not England, so does not affect me, in my practice!
As you have said yourself and I quote "wilful neglect if they leave a child unsupervised ?in a manner likely to cause unnecessary suffering or injury to health?, These children were not come to any harm, were not physical abused, or neglected in a way that represents any ill or willfully safeguarding or welfare regarding the law!
Children's law is very complex and each law is not a one, two, three, set in stone, as some acts do not represent the individual case.
I will say again, this man has not broken the law, he left his children unattended, and they were fine, no harm, no physical or emotional abuse. This is not against the law!
I do know what I am talking about this is my professional, and I do this for a living, and have done SO FOR the past 10 years!