But this kind of thing has a background that everyone understands—pandemic control.
Pandemic control is also a national-scale empowerment campaign for security guards, volunteers, and other grassroots workers, giving them the power to check, intercept, and even "detain" overnight.
Standardized service awareness is out of the question; attitude quality depends entirely on luck.
From my personal experience, I've encountered security guards at high-end malls waving their hands as if shooing away dogs, while in rundown neighborhoods, I've met smiling guards, all cordial, checking temperatures.
The previously idle "gatekeeper grandpas" suddenly took on a fierce look, wearing red armbands, blocking the entrance, and starting to interrogate everyone. This is essentially a presumption of guilt, assuming everyone is dangerous, suspicious, and therefore must show proof or take measures (wear a mask) to prove their innocence.
