Final answer:
The concept being described is child welfare, which refers to the state's obligation to serve as a guardian over children in adverse conditions that jeopardize their health or law-abiding nature.
Step-by-step explanation:
According to the given information, the concept being described in the question is the state's obligation to serve as a guardian over children who are in adverse conditions that jeopardize their health or law-abiding nature. This concept is commonly known as child welfare. Child welfare involves the protection and care of children who are at risk of abuse, neglect, or other forms of harm. The state or government is responsible for intervening and providing support to ensure the well-being of these vulnerable children.