California Code, Welfare and Institutions Code - WIC § 9664

(1) Ageism is the systematic stereotyping of, and discrimination against, persons based on age.

(2) Ageism is manifested, at both the individual and institutional levels, in a range of ways, from the perpetuation of stereotypes and myths about aging and older adults, the dislike and outright disdain of elders, and the simple subtle avoidance of contact with elders, to discriminatory practices against elders in housing, employment, and services.