Actually, they've already caused the government to incur far more than $2 in costs just by existing. Costs incurred in public schools alone will be more than these children put in. That's beside the point, however.
Regardless, the critique isn't against the children (they are, after all, children) but against the parents who utterly failed to use this opportunity to explain just how big the debt really is and why $1 per child (or even $1 per person) wouldn't put even a moderate dent in the debt. The parents aren't helping anything by failing to instill basic logical thought in their children. Of course children are going to miss things like this on their own, that's expected and perfectly fine; there's nothing wrong with that. But what is wrong is that the parents flushed a great teaching opportunity down the toilet in favor of feel-good bullshit.
ZV
What parent is going to take their kids saying "mommy, I want to help pay down the national debt," and say, "but honey, you can't." That is TERRIBLE parenting. Yes, we all agree that even if every kid in the US did this, it wouldn't mean squat, but teaching our children that taking responsibility for the national debt is a good thing to do is an EXCELLENT lesson. When they grow up with years of this lesson, they'll be adults who contribute more than they need to for taxes to help repay the national deficit/debt. If every single person in our country did this, our debt problem wouldn't be nearly as bad. Instead, most parents teach their kids that they need to get as much money as possible for themselves, so instead of a culture of helping out the nation, you have a culture of greed. Yeah, that's been great for the national debt.
These kids gave what they could. Bravo to them. If every American did the same, we wouldn't have the national deficit we do. So instead of praising their actions, we shit on them. What the fuck is wrong with us? They're children; they aren't supposed to understand a number like 10 trillion. Most adults can't conceive of that amount. We hold that against them? Shame on us. Who here can claim that, as a nine-year-old, we understood the national debt?