<p>The reason you are getting dismissive responses is that it is essentially impossible to have an informed opinion about your career choice until you have seen much more medicine from the viewpoint of a professional. Shadowing an oncologist will help a very little bit, but until you get through a couple of years of medical school you will not really understand what is going on.</p>
<p>Molecular biology is useful in many fields of medicine, but you can go into any specialty with any college major, so don’t worry about it. </p>
<p>In fact, you probably have it backwards. You should major in something that appeals to you and your college experience will help you identify characteristics of a career that you like.</p>