I think irrespective of the particular ways people lived in the golden age, they are still humans like us at the end of the day and therefore had the same needs, same physiology and psychology and were subject to the same laws of nature. So their studies are just as relevant today.
There is no need to fix something that already works.
I was watching a documentary last night by Graham Hancock entitled, “Underworld” and I was incredibly surprised and impressed at just how they did live 11,000 years ago. They have discovered ancient cities like modern day metropolises incredibly well planned, with drainage system and modern-like artefacts. These cities existed prior to the end of the age ice and were destroyed in the floods that ensued. The ancient Tamil record a massive civilisation that existed in the Indian ocean which all but got submerged by the rising sea levels. I am completely convinced something like Yoga or Sanskrit could not have been developed by primitive people, but only by the most scientifically advanced civilisation.
I am convinced beyond a reason of doubt that there have been advanced civilisations on this planet, perhaps several before. We are not the first and probably not even the last. The ancient Hindu records mention we are the 7th Manu, this means there have been 6 Manu’s before us. A Manu is a founder of a world civilisation.
I do not at all buy the current history(his story) of the origins of civilisation and humans.