Security shutters are most often used on commercial buildings, offering them protection from break ins and vandalism. They are operated electrically, so the shutter will slide down over the door and lock into place. However, they might also be useful in homes. Whilst they might not be the prettiest addition to a property, they can come in different colours and finishes to make them more attractive. But the main reason you would have them would be to protect your home.
Security shutters can be used to give lots of additional protection, so they can be really good if you live in a high crime area. They will give you extra peace of mind if you use them at night. They might also be useful for ground floor flats and bungalows, where it is good to have some additional protection from break ins. Choose a brand that offers quality shutters and will install them for you as well.