I live surrounded by security cameras. The front door has iron bars. Razor-wire tops a nearby fence. Armed police officers are ubiquitous. No, I live downtown in a major American city.
Private citizens stick cameras in various places for defense, or the appearance thereof.
Securitycams to catch shoplifters. But this digresses from the point. If you live in the US, your taxes fund an ad campaign dedicated to undermining support for medical marijuana. While illegal drugs are no panacea, some of them are quite useful. Marijuana is one of the most effective anti-nausea medications available, which is a significant help to persons using strong chemotherapy.