@JadeFer I could be wrong in assuming this based on my limited experiences but asians tend to be pretty open with their families:
Japan: Fathers bath with their daughters up to middle school and sometimes even longer. The same applies with the sons, they even wash each others back lol.
https://loloha.com/embarrassing-customs-japanese-girls-bathe-with-their-dad/
https://www.quora.com/Why-do-Japanese-father-and-daughter-bathe-together-even-in-junior-middle-school-Isnt-it-a-crime-in-other-developed-countries
China: they don't have the custom of bathing together with the kids, however family relationships tend to be much closer. Specially in the past, as depicted in this manhua set in the ancient times.