When Caesar feeds you, you will eat what Caesar gives you. And you'll do whatever else Caesar wants you to do, too ... even if it means bending over and kissing your own @ss.
The threat of taking away school lunch money is almost certainly how Michelle Obama enforces her dictates. It is how the feds have manipulated local school policies, though only now, with Common Core, are they planning the national takeover of school curricula.
The amount of garbage added to schools solely on the back of the lunch program are just obscene, having nothing to do with food or education. Student psychological and cultural questionnaires, teacher reporting requirements, tons of administrative paperwork, again, that has nothing to do with food... You name it, the schools are forced to do all of it, always with the same threat.