Poet Robert Frost once said, "Good fences make good neighbors." It is true that in many cases, people need boundaries. Fences make people feel more secure. Fences tend to discourage trespassers from coming onto your property and provide an overall sense of privacy.
Fences are also important if you have pets, particularly dogs. You want to have a space where your dog can roam freely and be in a safe environment at the same time. A good fence fulfills both these needs. For dogs, there are also other options such as the invisible fence.
Lastly, fences can serve many aesthetic purposes for your home. White picket fences add a completely new design dimension. Many people also choose to include lattices or other types of decorative fencing around their homes and gardens. Natural fences such as shrubs are another great option. The possibilities are virtually limitless.