Sounds good in theory, but I haven't met any senior yet that wouldn't just hightail it to the ER with a major flu.  I'm sure you get all the recommended cancer screenings and every test available, diabetes, cholesterol.   People talk a good talk but few really would just skip treatment for cancer, no angioplasty, no pacemaker and all that good stuff.  They all would rather turn into frail old-old and end up in LTC.  I've seen 89 year old women "battle cancer" until they die at 91, people with advanced Parkinsons requiring daily caregivers getting cancer screenings.