My horse riding days are behind me. Getting older and don't want to risk a Christopher Reeve kinda situation. Safer to drive around the property on a 4 wheeler John Deere Gator. And can carry more practical load than horseback.
The horse's strength is now only needed in the body. No one in this modern civilization depends on horse to transport anything. Now everyone uses four wheelers for transportation. Because cars can transport more and more safely than horses.