Hoof care also falls under the moral responsibility area. Every time a horse is handled, its feet should be inspected for soreness and injury. Remember, no hoof, no horse. The next thing is veterinarian care. A vet can establish a program for preventing illness and disease.
Parasites are common and a veterinarian can recommend a program for deworming.
Many people do not realize that an owner not only has a moral obligation but a legal one. When riding the horse somewhere other than private property, make sure that riding is allowed. When building barns and fences, the owner needs to be aware of building or construction codes. It is also an owner's duty to ensure gates and fences are secure. If a horse gets out, the owner is liable for any damage that the animal might cause.