I’ll agree that it’s less work, but I have lamb’s quarters growing wild in my yard and it’s a lifesaver for me. The leaves are edible, do everything culinarily that spinach does, AND they dry for use over the winter. I’d be all over that even without the seeds.
As a leafy crop instead of a grain, I definitely agree! It’s higher in calcium than spinach, too. I’m not much of a spinach eater, but I keep several patches of lamb’s quarters for my chickens. They go nuts over it!
When comparing it to corn, I was focusing on the grain aspect alone.