My father was in remarkably good health into his 90's but lived alone on the farm. It made me crazy for a while after my mother went to the care facility when he was in his late 70's. I called him every evening and he would often tell me that he had worked ground until 10pm or something similar. Of course, he had no cell phone and refused to own one. I finally made peace with the situation because he had no dementia and handled all his own business and looked after my mother's interests at the care facility. He had a cleaning lady and did his own laundry. I knew that was the way he wanted to live. Also, the neighbors would notice if anything was amiss. He went out to eat every day and went to church every Sunday. When he finally went to a care facility of his own volition he had a phone in his room and still handled all the farm business and wrote the checks to pay for his care. He only had to live that way for 10 months before he died of sepsis at 94.