Sadly as a former tech, I can attest that most people don't understand what Malware, Spyware, Trojans, viruses..etc ..are.
Most people don't understand there systems at all or how to print. Most people don't know what DRM is or why it's the downfall of civilization as we know it. Most people don't know what the RIAA or the MPAA is until they get sued into the ground by them. Most people don't know what Fair Use is or what it entails. Most people don't even understand how their local or federal goverments work (or even care).Oddly enough people do know, that they might be able to play a game on a computer, poison their minds with porn, write email, what a filesharing program is and use an ipod...go figure.
These are the same people who fall for incredibly stupid tricks in MMO games. Have 300 items of spyware on their systems. Can't figure out why their ancient system can't play FEAR. Fall for phishing tactics and use passwords like 12345.... (of course thats the code I use on my luggage but don't tell anyone)