Housing horned and de-horned goats together isn’t ideal, we learned this once we got our herd. Head butting is such a massive part of goat life; play, defence, hierarchy, scent marking etc… life without horns as a goat doesn’t mean you’re exempt from head butting, if anything they headbutt even more as they are likely to be bottom of the herd and therefore having to deal with the results of that (being pushed around, moved on from food, head butted etc). It isn’t fair for a dehorned goat to live