My partner "saves" whethers. I can't think of anything more useless on a dairy farm. But he insists. I offer him some promising doelings every year and he tries to "save" the whethers. His five adult whethers are the most destructive bullies here. He doesn't bother to teach them to pack or pull carts, both acceptable whether occupations. They just break down their fences, ruin the hay, and rampage about as they please. This weekend, I am rebuilding their fences and installing electric fences to contain them. If this doesn't work, a .44 will. I'll just claim they broke out and ran off. No one wants to eat 5-8 yr old whethers.
i usually trade or butcher the whethers, but i keep at least 3 billies around for protection. i have acerage, with range rights. there are fences around the perimeter of the range. they come home at night but free range during the day.
the sheep i have a share in are on a range two ranges north, and always free range. the sheep (navajo churro)are never butchered. they are too rare, so someone will always trade for them. they give the wool that is spun into yarn to make navajo weavings.