”one might think it a simple aesthetic design decision to create a park bench that is divided into three individual seats with armrests separating those seats. Yet the bench may have been created this way to prevent people—often homeless people—from lying down and taking naps.”
Section A really hints at the point that we have subliminal architectural objects placed in society that have a deeper purpose to up hold. For example a low bridge could be used to keep low income transporter buses from reaching the wealthy side of town. The second paragraph hits a point that law makers don’t regulate enough rules to keep this type of discrimination out of an environment. They consider it a “norm” as used in the text.