sure we need food. But the way we water it is one of the more inefficient ways possible. But it is inexpensive. They could use almost 80% less water than they do. If you are worried about water use, start there. https://ag.umass.edu/vegetable/fact-sheets/irrigation-drip#:~:text=A%20properly%20installed%20drip%20system,subsurface%2C%20near%20the%20root%20zone.