I have GG, gg x saanan, and angora goats. The two original dairy goats came to me disbudded, one produced polled male kids and one out of female triplets polled, I kept the polled one, but milked the horned one with no problems before sale.
The horned dairy kids do get their horns stuck in the stock fencing and one even at 18months still hadn't learned not to. It's usually when about 6months.
I had one angora kid belly skin ripped badly by a x-bred kid and for the first time this year had one of the angora does attacking the others after shearing and ripping skin with the end of her horns. Maybe her horns have grown forward more this year. They usually butt each other as each is put back after shearing but never damage before.
I get more bruises shearing the angoras than any injury from dairy goat horns.