Government DO restrict smoking inside public buildings where I live anyways. As well as public buses. But its not illegal and banned everywhere. But the reason is that its a public health issue because of secondary smoke.

Reducing the size of poison pop a kid can buy at any one time is not an outright ban. Its just a way to extend the boys life. So it will be years later than it would have been when he'll be so obese that your tax dollars will have to pay for him to be transported to a hospital to undergo emergency surgery.

Also this action is a good way to create awareness of our sugar addiction even if it goes down.