I never hear of anyone even attempting to live like a stone age person would. Nobody who romanticizes it ever seems to try it. Even people who love backpacking and camping bring along a whole pile of stuff made possible by civilization to make themselves more comfortable.
Heck, how many can make a fire without matches? Who'd give up boots? How about that parka? and that lightweight tent? canteen? cotton underwear? pots and pans? jeans? steel knife? trail mix? rain gear? toilet paper? the backpack frame and straps?