re: When/How do we start punishing parents for disasterous parenting?

It's not just money. It's time. It's effort. Running around picking the kids up after their activities. It's easier to go the prepackaged/fast food route.

It's be great if everyone shopped to cook meals ahead of time and feast on leftovers. That's what I do, because I can cook and save some money that way. Many people apparently aren't able or willing to do that. So I offer the tax and tax elimination package to make the savings more worth the extra effort.

Make it even cheaper to eat healthy. More expensive to not. Tip the scales toward better eating.

If the current savings were actually worth it on healthier food, we wouldn't be staring down this obesity problem (though it's certainly not the only factor).