Join Date: Apr 2013
Location: Southern Indiana
He should be able to adjust since he has goats for company it may take a little more time if he's always been with other horses though.
Some things you can do:
Spend some extra time keeping him company during this transition.
Retrain him so that halter doesn't always equal it's time to work. Put it on him before feeding him and then take it off when he's done without asking a thing from him. Walk out into his pasture and put it on, give him a scratch on whatever his favorite spot is and take it off. Not saying to never work him just add these extra steps so he realizes the halter is not his enemy.
If he's always been a trail horse it's quite possible that he isn't used to being lunged and it's not uncommon for a horse to prefer one lead over another, usually they prefer going on their left lead. Start off small and work with him a lot on the right side, lead him in hand from the right, ask him to make small circles around you to the right and when he get's comfortable with that lengthen the amount of lead you're giving him. If he backs up, just pull his head around and walk towards his rear, if he keeps backing up, you keep pace with him, don't stop to pull him forward as that's letting him get his way. He'll catch on eventually. It all takes TIME and PATIENCE.