OK, but this article is written considering that the parents live separately from their children. The best option for all concerned would be live in joint family set up. Then your old parents needs will be automatically adressed and in turn they will be willingly availble to help you raise your children. A grand parent's wisdom is always beneficial for your children. From the reports I read from internet sites, even in US now a days, people are preferring to stay together. All it takes is little bit of adjustment from both sides