…Much closer to home, laws in 20 U.S. states require family members, for the most part adult children, to support their financially needy relatives, which can include elderly parents who no longer have an income or disabled adult children who are unable to support themselves. Most of these statutes, which are among the original laws of the states, have not been in active use since the Great Depression. In fact, most states repealed them from the 1950s through ’70s when older people began reaping the benefits of Social Security and Medicare…. The social revolutions of the 20th century changed this social landscape in the U.S. and in much of the world. Parents live much longer, often with chronic conditions for which they need medical care. Women as well as men are in the workplace, and adult children may live hundreds or even thousands of miles away from their parents. That’s what prompted the law in China; with so many of the younger generation seeking better employment and financial opportunities away from home, elderly parents are increasingly left behind to fend for themselves….