Metal is just a fad.

Really still living in the stone age, I see, eh old man?
- Melting rocks is dumb when you can just chip them.

Metalworking is an addiction that makes us dependent on Big Furnace.
- Bah. you're just too lazy to learn how to build one. It's not really that hard to do, and stone tools still have their use and place. There are, so they say, great and vast deposits of metal, but most are hard to get to. stone is everywhere, even if the good quality stone is a touch rarer.
  Keep the knowledge of stone shaping alive. Even if the stone tipped arrow is replaced by copper, those copper arrow heads are far rarer than the stone that has always existed.
- Each technology makes humankind more enslaved to the mistakes of its ancestors.

A late bloomer? Folks have been snapping since Homo Habilis. My great^54 grandpa told me they used to gather flint and they would find the right rocks after walking uphill, both ways, backwards, in the snow.
- ...what is snow?

I remember when reed baskets were invented. Everybody wanted one. I kept bones in mine.
- Makes carrying what's been found a lot easier.

Ok Gramps, im done eating wild berries! Kids nowadays eat bread and drink beer!
- Kids these days ain't tripped on cow shit mushrooms. What's the world coming to
  
  Aurochs might have gone extinct, but cubes are still pretty popular

No one can destroy the Metal
The Metal will strike you down with a vicious blow
We are the vanquished foes of the Metal
We tried to win, for why? We do not know