Newton described why it is harder for an older non-trad to get into medical school than for someone just finishing college as a pre-med. It's called the law of career inertia. Often, a career is visualized as an object moving along a certain path. This career, once in motion, tends to stay in motion along that path and it takes a lot of force to change its direction. There are a lot more "why's" to answer as an older applicant than if one were fresh out of college. Whereas the new college graduate gets asked essentially just "why medicine," the older applicant also gets asked "why now," and "why leave your current career," and "what more do you think you can accomplish as a physician," and "do you think you can handle classes again," etc. etc. Any one of these questions can raise a red flag for an ADCOM member, scuttling your chances at that school. For an applicant just graduating college, their career is viewed as an object already in motion along the path of becoming a physician and thus a career path that requires no deviation. Simple Newtonian physics. Of course, Newtonian principles break down once you get on the waitlist and we are still waiting for a unified quantum theory to explain who gets in at that point.