I would add that it's not just end-of-life decisions that we ignore or fear but anything long term or non-acute. Modern medicine is geared towards getting better quickly but there are certain ailments, be it old age, a traumatic brain injury or mental illness, that we're absolutely terrible at dealing with. It's not that people are not willing to put in the years (as is demonstrated by the brave woman in this article) but that the learnings and breakthroughs for long term illnesses takes generations, not years and sadly we're barely at the starting line.
Please thank your mother for everything that she does for her patients and thank you for sharing.