culture courses for the aged
Refers to educational or cultural classes designed for elderly people, often offered by community centers or local governments.
I'm learning calligraphy at the city's culture courses for the aged.
Compound of 寿 (ことぶき, 'longevity, congratulations') and 教室 (きょうしつ, 'classroom, course'). The exact origin is uncertain; it likely arose as a euphemistic name for senior education programs.