Portraying elderly people as a whole as senile, rigid, or old-fashioned is an example of "ageism".
Ageism may result from the fundamental source of inequality—age stratification—based on assigned position. Age stratification leads to the social injustice known as ageism. This sociological idea arises from the study of the aging population.
Ageing and older people are the subject of gerontology. As lifespan has increased, so has the study of aging. Physiology, social science, psychology, public health, and policy are among the fields in which researchers in this discipline have training.
A norm is a set of rules or an expected standard of behavior. Every community establishes its own set of moral standards and determines when those standards have been broken and what should be done about it. Inevitably, norms shift.
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