Was the Stone Age the Stone Age for all civilisations ? What if....it just was not ?

"Stone Age" seems to imply grunting and whacking one another with clubs. Many of these tribes had highly sophisticated language expressed on cave walls, much of the language is based on universal symbols with tribes who had no connection or ties with each other yet these tribes had similar mythologies and cultural traditions.

We have these stone age cavemen with no formal education drawing images of what appears to be human figures wearing "space suits" oxygen masks, panels of gauges and technical type instruments. Kind of makes one take pause and wonder.

If they saw the West today they'd definitely conclude,"They're savages"

No. Stone age was referred to the time when equipments and transportation were build through stones. Before introduction of metals and steels.

"Was the Stone Age the Stone Age for all civilisations ? What if....it just was not ?"

Between certain limits, it was far from homogeneous.
While most of the world was barely populated by hunter gatherers, threre was agriculture, math and literature in what is now called the "South Arc" (includding Sumer).

If ETs came to earth today, I think it's likely they'd declare all of us in the Stone-Age-hidden-by-fancy-gadgets.

They're already here and this is the harvest time to steal as many souls as possible

Can't call it the stone age when there's iron smelting. Oh yeah and history