If you think about the amount of biomass that gets thrown out from a lawn once a week in the summer it's absurd. I tried to find the smallest thing that can eat a diet of primarily grass. It turns out it's tiny goats. You might think it's rabbits, but while they can eat grass, says chatgpt their diet can't be mostly grass, so you would be stuck feeding them mostly other things.
Should we transition to a society where most households have dwarf goats?