Internal medicine

Whenever you talk to a little kid, a lot of them say that they want to be a doctor. Sometimes they get more specific. Many want to be a surgeon, or be a radiologist, or a pediatrician, radiologist, dentist, ophthalmologist, or any other specialty. But you almost never hear a kid say that he wants to be a doctor, and specialize in internal medicine. But more doctors specialize in internal medicine than most other fields.

I need to do more thinking about this, but if anyone has an answer please share with me.