Yes I know how averages work bigpaul. My great grandmother was born in the 19th century and lived to 95. Her daughter, my grandmother, was born around the turn of the century and lived to 94. Her son, my father, was born in 1922 and lived to 89. It's possible to beat the odds, especially if you have the genetics.
When my sister was born, I stayed with that grandmother and great grandmother a while. We lived close to the life you crave, but with some electricity - mainly for lights, refrigerator, and ceiling fan (no A/C). Oh and well pump, which didn't work so well, LOL. My grandmother washed clothes in a cauldron over a fire in the back yard. She heated bath water in a washtub on the stove. I plowed her garden with a plow meant to be pulled by a mule. We walked to town when we needed to go to the post office, store, church, etc.