Problems? All the problems in the world can exist with or without dual careers. Or almost none if there is shared understanding between partners and family members.
I fully support the concept. Like I said earlier, family and morality can be held in dual careers households. Depends on individuals and family involved. What makes us think that dual careers are the reason for devaluing family/morality around the world (not just the west)? Home environment is only one of the factors influencing character development of kids. Other factos such as society, emphasis on individualization to the extent of not seeing or thinking in systems/interconnected ways, inherent human nature, etc. could all be responsible for shift in values/culture. Why blame time spent on our careers?
Hmm, I don't think money is the sole reason for having dual careers. Women have dreams, career aspirations, wants/needs to be creative and contribute to the world, not just her/a family just as men may. Now that it is "more acceptable," and women have the option, they utilize. Women may/can lead more fulfilled lives as individuals (speculation), and hence contribute more to the family.
Yes, there may be less time for kids/children, but at least in my mind, I don't think I would want to be around family/kids (which I don't have) 24/7. Expression, love, care, share when needed/sought is enough for me. I don't know about others. :)
Persy