Have you ever felt like your doctor's appointment is at an unreasonable time? Maybe you'll hit the worst of the traffic in the morning. Maybe the new doctor you're seeing isn't even in the same town. Perhaps they've got one available new patient appointment over the next five months.
Accessibility is something I was actually taught in school - most likely because both fields I chose to study had a tremendous amount of restrictions in place because of accessibility, but nonetheless the topic was never hidden from me.