A Lock perhaps is the best indicator that a Utopian state is far from a reality. In an ideal state, one would argue that there is no business for securing the entrance of a house or a vehicle with a lock for there are no thieves. But we see security as a concept only evolving both in reach and in technology, indicating we are only moving away from the utopian concept.
Until we achieve a Utopian state, may be many centuries later, letís focus our attention on to security. With class difference and uneven distribution of wealth, the gap between haves and have nots is only increasing. The not so privileged wanting to live a life of the privileged, may think it right to relieve the privileged of some of their wealth by forcefully taking it. Then there are the greedy and lazy who can think of any devious ways of making easy money, except taking the trouble of putting in a days of honest work.
With evolving technology and the increasing rate of crime, home security has evolved into a big industry, ranging from a simple good old lock and key to modern, sophisticated access control system. Whether you want to secure your gates or door or safe, the technology has ensured you do it in the most efficient way. You can control gates through remote controls, secure your house by installing security alarms, CCTV surveillance cameras at strategic locations, and so on.
Home security need not only be against humans. It can be against other emergencies such as fire threat. You will need fire alarms and fire extinguishers near at hand. There are many useful listings of companies that ensure you have a peace of mind in your home.