If everyone is legally entitled to a free lunch, schools would be obligated to produce enough meals for every eligible student, whether they eat it or not. This would possibly over double the cost of the school lunch program, increase food waste, and do nothing to help poor families. Forgive me if I would rather see those billions either not spent at all (there's an idea...) or directed towards programs that actually serve the public, instead of another case of politicians spending money just for a headline and not even helping people in the process.
Ah yes. Time to eat disgusting reheated slop, kids! You don’t deserve better! It’s not like we expect you to take care of us in old age or take up positions we once held! Your success doesn’t matter, all because we decided decades ago to be penny-wise, dollar-foolish! We’re going to mess up your relationship with food for years and make it into a subject of shame and self-hatred, rather than a genuine and good experience!
Poor kids already get free or nominal price lunches. This does nothing about making those lunches better.