I regularly install a self signed CA cert to reverse engineer the API behind various apps. Your tech-unsavvy person need only follow a couple of steps to install one too, especially if it's their network saying "This increases performance and speed or w/e guff we need to convince you to do this"

apparently suckers believe that lg, the company that makes tvs that upload shows watched or files on your network, or samsung, the company that needs your phone number, address book, gps location, and accounts in order to download jayz mp3s, wouldn't install a cert for verizon