Just a quick note on this. Dennis Mangan recently posted an entry discussing a study done in Europe that showed, through cell phone records, that women over 45 spent more time talking with their oldest daughters. The study looked at records from one undisclosed European country. While I have some anecdotal support for this, I am curious as to exactly which European country this study examined. Was it a country with a tradition of a “stem” family, or perhaps one where a Slavic-style commune was common? Or was it a country with a history of a Western-type atomized nuclear family? I think this matters, because I’m not so sure one can generalize about human nature by looking at one society alone.