A restriction takes the burden off families least able to carry it

The argument

A second argument for a ban concerns who bears the burden of the alternative. Proponents point out that the usual alternative, educating children and expecting parents to supervise, places a continuous daily obligation on every household, and that households do not have equal capacity to meet it. A parent working long or irregular hours, without a kitchen or the money for fresh ingredients, or without the time to argue at every shop counter, is not in the same position as one who has all three. On this account leaving the matter to parental vigilance produces an outcome that tracks income and spare time rather than anyone's convictions about diet, which is why the harms concentrate among the least advantaged. A restriction, by contrast, works once rather than daily. Proponents argue that removing such products from schools, nurseries, hospitals and children's facilities, and ending their marketing to children, changes the default for every child at the same time, without requiring any individual family to win a struggle it is poorly placed to win. The analogy drawn is to measures already accepted without much controversy: child car seats, restrictions on advertising aimed at children, and limits on smoking where children are present. In each case the intervention applied to everyone and removed a hazard from the environment rather than asking parents to manage it. Proponents also argue that a public cost justifies a public response. The illnesses associated with these diets are treated collectively, through shared healthcare and lost working life, so the claim that the choice is purely private is on this view already given up in how the consequences are paid for.

Premises

Counter-arguments

Opponents reply that the comparisons do not hold: a car seat or a smoking restriction removes a hazard the child cannot avoid, whereas food is bought and prepared within the family, so a ban reaches into decisions parents are entitled to make. They argue that it also misidentifies the cause of unequal outcomes, which has more to do with the price and availability of fresh food, the hours people work and the state of local shops than with the legality of particular products. Address those, they argue, and the default changes without prohibition or the resentment it generates.

Rejecting the premises

[Rejecting P1] The daily obligation described is parenting, and the premise treats an ordinary responsibility as an imposition the state should take over. [Rejecting P2] The unequal outcomes are driven by the price and availability of fresh food, the hours people work and local provision, so a prohibition addresses a symptom while leaving the causes untouched. [Rejecting P3] Child car seats and smoking restrictions remove hazards a child cannot avoid, whereas food is chosen and prepared inside the family, so those precedents do not extend to this case. [Rejecting C] That consequences are paid for collectively would justify intervening in almost any private choice, which is a reason to doubt the inference rather than to accept the ban.