There have been any number of "Stone Age" cultures over the past half-million years or so, and they haven't all been the kind of Hollywood sexist fantasy version of the Flintstones that Teribus described there.

Most of the time human beings have lived on this planet, by a long long way, we were living in "Stone Age" cultures. In some ways our present way of doing things may be better, but it'd be very arrogant to assume that in all ways that is true. That includes how we organise societal relationships between men and women.

Some of the nastiest societies we are aware in the whole of history have been versions of our modern technological culture. And that includes the way they have organised societal relationships between men and women.