1. Many large nations already heavily subsidise food for food security as it stands. We need to avoid butter mountains and milk lakes because it's wasteful.
2. Many first world countries already feed their population to high school level anyway.
2. A national plan for good, healthy, free food will prompt people to eat properly, on average it would encourage responsible eating (you can only get so big eating potatoes, broccoli and meat, it's the heavily processed stuff that is dangerous).
3. Job Automation is going to change our work situations anyway, within 5 years alone we'll have taxi drivers and hauliers without jobs. Once AI removes these jobs we'll have serious problems on our hands with unemployment.
4. If everyone didn't have to struggle with the time and money to feed themselves maybe we could concentrate on what's more important, like getting to mars or something.