Estates and complexes appear to offer a solution, however they present their own security challenges
https://www.property24.com/articles/ins-and-outs-of-complex-security/20535
Uniforms Play an Important Role in the Private Security Sector
Another reason why SAS Security provides Uniformed Security Guards http://www.sabusinessintegrator.co.za/viewonline/216/company-news/uniforms-play-an-important-role-in-the-private-security-sector