If you need robot arms and computer vision, it sounds then like permaculture is impractical at scale necessary for replacing standard agricultural practices.

Gardening is my hobby, and over the years I found a lot of practices that improve my yield tremendously without depending on chemical pesticides or artificial fertilizers. However, I would not dare suggesting to the professional farmers that they should follow my steps. These practices work in my garden, but they simply aren’t practical if you need to feed the entire world.

People who are middle aged and raising children don't have the time necessary (or the good physical shape) to participate in permaculture on any meaningful scale beyond maybe growing some veggies for personal consumption.