Driveway gates can give added privacy inside your home, preventing people looking straight in. They can also prevent people looking straight onto your driveway and seeing your car, or other valuable items, that might then encourage them to attempt a burglary. Indeed, on that note, driveway gates are also very good at putting people off breaking in, making it seem like it is far too much effort and that the odds of getting found out are much higher. For these reasons, driveway gates are often installed in homes.
If a driveway is particularly exposed or is in a busy area, driveway gates are useful in giving that extra degree of privacy and protection. If the driveway is more secluded and the house is in a more private spot, then driveway gates can look very attractive whilst still giving peace of mind in terms of helping to add an additional layer of security.