The other set of reasons for variation in the treatment of the elderly is the society's cultural values. For example, there's particular emphasis on respect for the elderly in East Asia, associated with Confucius' doctrine of filial piety, which means obedience, respect and support for elderly parents. Cultural values that emphasize respect for older people contrast with the low status of the elderly in the U.S. Older Americans are at a big disadvantage in job applications. They're at a big disadvantage in hospitals. Our hospitals have an explicit policy called age-based allocation of healthcare resources. That sinister expression means that if hospital resources are limited, for example if only one donor heart becomes available for transplant, or if a surgeon has time to operate on only a certain number of patients, American hospitals have an explicit policy of giving preference to younger patients over older patients on the grounds that younger patients are considered more valuable to society because they have more years of life ahead of them, even though the younger patients have fewer years of valuable life experience behind them. There are several reasons for this low status of the elderly in the U.S. One is our Protestant work ethic which places high value on work, so older people who are no longer working aren't respected. Another reason is our American emphasis on the virtues of self-reliance and independence, so we instinctively look down on older people who are no longer self-reliant and independent. Still a third reason is our American cult of youth, which shows up even in our advertisements. Ads for Coca-Cola and beer always depict smiling young people, even though old as well as young people buy and drink Coca-Cola and beer. Just think, what's the last time you saw a Coke or beer ad depicting smiling people 85 years old? Never. Instead, the only American ads featuring white-haired old people are ads for retirement homes and pension planning.