Have we determined they aren't already doing that? I live in a rural area, and the local district has been doing it for nearly a decade. Kid just swipes his school ID... like every other kid, regardless of income.
This is one more step to government feeding troughs for all. Just like the "free education" system, it will make it so that the majority of people will just give in and do the government thing, because they can't afford to pay taxes to pay for the "free stuff" PLUS buy their own stuff on top of it. Just like home schooling is ridiculed now (despite its superior results), if you grow a garden, hunt, and fish, or take it even farther and process and preserve your own food, you'll be ridiculed. The standard will be the government cafe or the government delivery truck with the equivilent of TV dinners. Why should the serfs only get breakfast and lunch for free? Why not dinner, too? Oh, and just as we educate the illegal imports, now we'll be feeding more of them, too. Yay.