"Jen King, the director of privacy for the Center for Internet and Society, says she believes that most people tend to find privacy settings very confusing. Facebook, which regularly revamps its privacy settings and takes users through an extremely detailed set of options, comes to mind most often. But Google is not immune to this either. In King’s own dissertation research, which included a small sample of subjects, she found that half of the people she surveyed knew how to clear their Google search history and far fewer had taken the initiative to go through their search history and clear it.
“It’s going to be a small minority who take the initiative,” King says. “It’s not that people don’t care; it’s just A) not their top priority, and B) it’s often hard for people to understand this stuff.”"