That makes sense! kind of a good reason for goats! Billy loves all that weed mess and will eat it rather than grass!
I've thought about goats before... but I don't have goat proof fencing now.
It's a fact of life on small acreage and without an ability to really kill weeds and cultivate good forage, that when horses graze the land, the only thing that survives long enough to seed itself is the stuff they won't eat. Over time it will all become weeds.