How the myths did changes to the people’s view?

In many myths and creeds people first find everything is easy then suddenly everything changes. Well that is regular everything changes, but in myths it changes to the worse as I will tell you later on how do the things changes and what are the people’s view and how it changes later on.
In many stories that I have read I realized that the people that are living in the age of gods are first good and then they turn evil. For example the ages that Hesiod showed us from the Golden Age till the Ironic Age. The Golden Age was a very nice age and people didn’t have to work or do jobs to get money they find everything easily and they are treated well. Then the author finishes up with the last age which is the ironic age that said people have to find their own food and work hard and children were disobedient to their parents.Definitely, when people see that there is violence in myths they also become violent and hatred spread everywhere. The myths made a lot of changes and many people changed because of the myths that they had saw.