老少咸宜

lǎoshàoxiányí
suitable for young and old

CEDICT

suitable for young and old

Wiktionary

老人小孩都適宜。

重編國語辭典

Entry Composition

1 老少 lǎoshào the old and the young
2 咸宜 xiányí
  1. (～鎮, formerly ～鄉) Xianyi (a town in Chengkou, Chongqing, China, formerly a township)
  2. Xianyi (a town in Chengkou, Chongqing, China, formerly a township)
  3. to be suitable for anything or anyone