この英文を和訳してほしいです。
There is some evidence that these improvements in the characteristics of elders have resulted in more positive views of aging. Tibbitts claimed that during the past 30 to 40 years, U.S. society has moved from holding negative stereotypes of old people to holding positive views in which elders are seen as being able to contribute to the quality of life for themselves, their communities, and society as a whole. Schonfield even argued that the assumption of negative attitudes toward old people is a "social myth" perpetuated by the gerontological literature. We will be examining these attitudes in derail in Chapter 2, but there does appear to be a substantial shift from negative to positive attitudes.
The improvements in the physical, mental,social, and economic characteristics of elders have been so marked, and there have been so many programs and services developed for elders only, that many have begun to criticize these programs as discrimination in favor of the aged, or positive ageism. We will be discussing examples of positive ageism throughout this book; but the ones that have drawn most criticism so far are the Medicare program and some features of the Social Security System, such as the automatic cost of living increases in benefits and the tax-exemption of Social Security benefits for most elders. Perhaps these programs have been criticized the most because they involve the most money.
Critics are beginning to argue that since elders are no longer deprived economically and since they are now much better off mentally, physically, and socially than they were in the past, it is no longer necessary or fair to continue the enormous expense of these special supports and programs available only to elders. Some argue that the way to reduce positive ageism is to make these supports and programs available to all ages on the basis of need. For example, they recommend that the national health insurance, which only elders now enjoy, be extended to all ages.
It is clear that positive ageism is becoming an important issue and promises to become even more important as we are faced with more older people and more expensive programs for "seniors only."
補足
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