Dosn’t the belief in a Golden Age comes from the transtion from hunting-gathering to agriculture, when men had to work way more for their food, making the former age looks like an eden?
Else, I’ve the impression that our world, where even poorer nations have to fight against obesity, when some diseases have all but diseappeared, even wars looks like something most national and international actors try to limit, would look like a paradise for people living in older times (see all these Third World nationals who know that even a poor in a First World country have a higher standard of live than theirs).