2) Let's be honest, ADCOMs don't really want all that much life experience. The whole point of this number-whoring, no grade forgiveness process to to select for people that have had almost no responsibilities, obstacles, or life experiences outside of premedicine. That's why medicine is so disprroptiationaly a profession for the children of the rich in general and physicians in particular. The reason I said college doesn't count (and, to expand, HS/MS/ES doesn't count either) is that the life experiences you mentioned tend to happen with much greater frequency when you're out dealing with real challenges and responsibilities, and not in the protective, money sucking womb of the modern University. If ADCOMs really wanted to max out heartbreak, deaths, births, failures, and disappointments they'd stop recruiting from top colleges and start recruiting from the military. Or corporations. Or trailer parks.
This is age discrimination for its own sake. Impossibly old men and women who just cannot fathom that a teenager might be able to handle the 'overwhelming' responsiblity of medicine. There's nothing else to it, and no reason to pretend that there is.