Locks keep honest people and opportunistic criminals out. A high end lock does you no good if it's left unlocked or an employee props open the door with a chair

Locks keep honest people and opportunistic criminals out. A high end lock does you no good if it's left unlocked or an employee props open the door with a chair. If someone is willing to break and enter the lock is no longer the weakest point. Cameras and alarms help a bit more. The possibility of someone being home or men with guns responding is a big deterrent. Smash and grabs are usually done on cars not homes.