> There's a lot of reasons for this but I believe genetics is at the core. We could blame estrogen and other sex hormones for making women prioritizing social

> There's a lot of reasons for this but I believe genetics is at the core. We could blame estrogen and other sex hormones for making women prioritizing social behavior over other things, but my bet would be on culture. When genetics and environment meet, it is generally differences in environment that create large changes in behavior. Looking back at the cultural outcome of world war 1 and world war 2, boys were molded to exist in their family until the age of 18. Then they were drafted into the service of the state, and if several years later they survived, form their own family and social life. Girls in contrast could keep their connection with their family, and thus was also expected to do that. This is the historical base for which our current culture is formed from, and while most military drafts are gone the culture has remained to some degree. Boys are still expected to "leave the nest" at early age, and girls are still expected to keep the social connections. If culture expects women to be social and men to earn money and be independent, it doesn't seem strange that on average women will also be more social and men be more focused on earning money and be independent.