What cultures outside the United States, caring for elderly parents, is not expected of a man who is working outside the home; it is, however expected of a woman, even if she is employed?
I am reminded of an old saying: "A woman's place is in the home, and she should proceed there directly from work".
My experience in my travels is that child care and elderly care are pretty much widespread given to women.
http://www.humnet.ucla.edu/aflang/zulu/culture.html#work