Not being snarky or smarta**.
I honestly believe the cave paintings were school oriented back in their day.
Young boys need to start getting the 411 on critters and kill points/hunting tactics *before* going out with the group and getting themselves killed.
Trying to teach them *after* they got themselves killed would be much more difficult.
Interesting thought
Why would these “educational” drawings be in such inaccessible places if they were learning tools?