All the people saying, “I’d just die,” remember that neolithic peoples (hell, all people up to the present day) rely on social bonds. You don’t have to possess every survival skill, just enough skills to be an asset to a community of mutual-support.

I already educate children, and regardless of society’s form I’d probably continue to do so because it’s vitally important. Also as someone well-practiced in a variety of handicrafts, I suspect I’d find my niche quite comfortably. Making useful things from limited resources, teaching others how to make such things, and teaching children the knowledge I’ve accumulated throughout my life, I think there’s bound to be a place in a stone age community for someone like me.