Usually in very dry areas once a day would do.
Probably the only time you need to put grease horses hooves is when the bolts don't come out. But that's only give there rusted or they won't come out
Well they are round if you take good care of the hooves! The hooves need special treatment! They need to be shod every 4-6 weeks! This meens that they need new hooves!
In domestication horses need their hooves trimmed to keep them a proper shape to avoid lameness. In the wild horses 'trim' their own hooves by walking on rough ground which wears them down.
The amount of oiling or 'greasing' a horses hooves will need will vary according to the conditions it lives in. Some horses may need it weekly, while others only during the wetter or drier seasons, it really just depends and it would be best to consult a equine farrier or equine veterinarian for the best answer. Keep in mind that the color of a horses hooves in no way affect how often they need maintenance.
Horses hooves grow like out fingernails do. Also like our fingernails, horses hooves need to be trimmed and maintained. Poorly cared for hooves lead to a ridiculous number of problems, the first being cracks in hoof wall, lameness, inability to walk... the list goes on.
To stop their hooves wearing down on unnatural, man made, hard surfaces.
Horses don't have toenails, they have hooves. And yes, usually they need to be trimmed regularly. Many horses are shod, and will need new shoes something like every 6 weeks. Even an unshod horse will need its hooves trimmed, unless it somehow manages to get enough natural wear from moving around in its paddock to keep the hooves at a suitable length, which would be quite rare.
Horses have hooves because that is the way they are, why do humans have feet. But horses need shoes because their hooves get damaged very easily when walking around, and it is very painful for the horse when their hoof gets cut, punctured, or otherwise damaged. And because they make a cool clickety clack sound when they walk!
Cats and dogs have paws, but horses and cows have hooves.
Pick your horses hooves out daily, or whenever you are up at the boarding place. As stones can get caught in the hoof, causing a stone bruise potentially. Also in the muddy seasons going too long without picking the hooves clean can develop thrush.
Horses need their hooves trimmed, teeth floated, vaccine shots, monthly wormer, and proper grooming and exercise. If that is what you are asking.
I believe it would be great to be able to run across open prairie and have no fence to stop you. I also think the life of a wild horse can be very hard, like avoiding predators and round ups, but nice to be in the company of others the whole time. no one really knows for sure.