Well that wasn't the point, but sure they can be ignorant just like anyone else. Reading your comment below I actually really appreciate your point on trusting

Well that wasn't the point, but sure they can be ignorant just like anyone else. Reading your comment below I actually really appreciate your point on trusting your doctor, but it's ok to still be informed or to be skeptical of their recommendations. I'm in medical school right now and we talk a lot about the differences between a paternalistic doctor-centered approach vs patient-centered approach, the latter focused on doctors and patients making decisions together and ensuring patients have an understanding of their diseases and risk. And while it requires specialized knowledge just like a mechanic, it's your body we're talking about, not your car. And it depends on the certainty of the doctor's suggestion. Screening is a more complex decision than, say, taking insulin for diabetes. And there are times when public skepticism really does become a public health threat (i.e. anti-vaccination folk).