Which of the following is NOT a typical site that requires security guards?

The best answer to the question is that residential homes are typically not regarded as sites that require professional security guards in the same way that retail stores, corporate offices, and concert venues often do. Retail environments usually have a higher foot traffic and incidents of theft or disturbances, requiring security to maintain safety and protect merchandise. Corporate offices often handle sensitive information and assets, necessitating guards to control access and ensure the security of the workplace. Concert venues, with large crowds and the potential for unruly behavior, also commonly employ security personnel to maintain order and assist with crowd control.

While residential homes may use security measures such as alarms or surveillance systems, they do not usually require the presence of trained security guards like the other environments mentioned.