CARA explains how the movie rating system is "constantly evolving."
"History of Ratings," The Classification and Rating Administration, filmratings.com, accessed September 28,2022
Furthermore, to ensure our rating system reflects the current sentiment of parents, CARA’s system is constantly evolving. As American parents’ sensitivities change, so too does the rating system. Elements such as violence, language, drug use, and sexuality are continually re-evaluated through surveys and focus groups to mirror contemporary concern and to better assist parents in making the right family viewing choices.