I didn't have to go through it directly. I was a child and my grandma didn't let me see my grandfather in his past months. It apparently was really bad and she wanted me to keep the memory of how he was when he was well. Heck, while the older family members got to visit, she basically took over the care on her own. She shouldered this burden of him losing himself so nobody else had to and continued on another decade afterwards. She was quite the strong woman.