Food still requires valuable farmland, water, energy, fertilizers, pest control, capital to buy and expand the automation, operating costs and labor to repair and oversee the operations. It's an enormous amount of initial capital investment and a massive on-going operating expenses, and that's just for basic farming.
Now, add all the post-processing and transportation logistics after the food comes out of the ground to get to basic staple ingredients. Then add all the preparation activities, cooking, and packing to get to the Hot Pocket/Pop Tart level of salable food (or food-like) product.
Watersheds need to be protected; water needs to be treated, tested, stored, and pumped under pressure through a distribution network of pipes. Sewerage needs to be piped in the other direction, treated, and disposed of.
Electricity needs space, energy input, capital, and opex and a distribution network that needs on-going maintenance and repair. Gas lines need a lot of the same. Internet distribution needs...
Medicine needs space, energy, [lots of] people with specialized training just to apply the state of today's art. It also has a large research and development component responsible for ensuring that we aren't still using leeches to treat "Bilious fever".
Now, add all the post-processing and transportation logistics after the food comes out of the ground to get to basic staple ingredients. Then add all the preparation activities, cooking, and packing to get to the Hot Pocket/Pop Tart level of salable food (or food-like) product.
Watersheds need to be protected; water needs to be treated, tested, stored, and pumped under pressure through a distribution network of pipes. Sewerage needs to be piped in the other direction, treated, and disposed of.
Electricity needs space, energy input, capital, and opex and a distribution network that needs on-going maintenance and repair. Gas lines need a lot of the same. Internet distribution needs...
Medicine needs space, energy, [lots of] people with specialized training just to apply the state of today's art. It also has a large research and development component responsible for ensuring that we aren't still using leeches to treat "Bilious fever".