Excuse the capitals, I have a problem with the editor, please, do read them as underlined or bold, not shouting.
I have been meaning NOT to send this message for the last two pages.
Masse, do you realize you are continuously contradicting yourself? That your posts SEEM to only have as goal to keep the discussion alive? That you are refusing any evidence to the contrary while still maintaining unsustainable positions long ago rejected by reputed, well-founded, evidence-based science? That it all sounds like an AI, bot or troll (not to imply you are one)?
At this point I can only come up with one answer, RTFM. Or do your own work and find out in RELIABLE sources what is known, and then think a bit BY YOURSELF.
I CANNOT do the search for you. There is a wealth of information, but if I "claim" to "provide" it, I won't be any more trustworthy than any of the zillion charlatans in the Net. You need to convince yourself, and believe me, there is a huge pile of evidence proving pre-historic, and pre-human beings (even monkeys and most other animals) had and still have lots of spare time, not all is survival, cultures start off common practices arising from behaviors that individuals choose (for many reasons, pleasure being one of them), that art predates modern humans, that producing quality art requires practice and this is easier if you like/enjoy what you do, that in ancient societies it was even more difficult than it is today to compulsorily force kids or adults do some specialized task they didn't like, so art producers had to necessarily like what they were learning to master in non-durable substrates before committing to definitive ones, etc.
Granted, this will take you on a long journey learning about Art(s), learning and teaching Art(s), Archaeology, Paleontology, Evolution, Ethology, Psychology and many other topics, but -believe me- learning can only help you become a better person.
Insisting on keeping alive a conversation in search of support for you own prejudices until someone agrees to make you feel better, won't.