Putting unhealthy food in the back? MY FREEDOM!
What you are overlooking, is what happens if a "nudge" doesn't achieve their goals.
Andy Stern, president of SEIU and one of the White Houses most frequent visitors said it best...
"We're trying to use the power of persuasion. If that doesn't work, we'll use the persuasion of power." Translated, that means they are going to ask you nicely to do things their way.... and if that doesn't work, they are going to use their political power to force you into compliance. Don't believe me? See if some of these examples ring a bell...
For years now, the progressives in Washington who support the environmental movement have used various incentives to "nudge" companies into finding alternatives to fossil fuels. Since that wasn't effective in achieving their goals, they have now written and passed in the house, the "cap and trade" bill that not only punishes any company using fossil fuels, but guarantees higher electric bills and increased costs for consumer goods for every American.
The government for many years has "nudged" big companies (and encouraged the public at large) into reducing their energy consumption by offering incentives to businesses that used energy efficient florescent lighting, rather than incandescent bulbs. Since the nudging didn't achieve their goal and most of the country still prefers incandescent bulbs, they decided to ban incandescent bulbs altogether starting in 2012.
For more than 20 years, the left has "nudged" liberal pundits, investors and their supporters on several occasions to develop a marketable liberal talk radio format to compete with conservative talk radio. Since those efforts didn't achieve their desired goal, they now have the FCC (diversity czar Mark Lloyd) working on a way to effectively force radio stations into broadcasting unpopular liberal talk shows, which includes their ongoing attempts to pass a modified version of the Fairness Doctrine.
Since you mention the food issue in the schools, what do you think the progressives in our government are going to do if in 5 or 10 years from now, the children's diets still don't meet
their nutritional standards?