For this applicant, "why medicine?"
How has the applicant tested their interest in medicine as a career?
Does the applicant have a realistic point of view regarding the profession of medicine?
How they got there is less of an issue. Some adcoms will use "shadowing" as a check box, others will like to see that the testing of one's interest included shadowing related to one's narrative (e.g. interested in pediatrics, have you shadowed pediatricians?)