>>213153523
>without shame
how do you know?
and why do you think shame is the only motivation? it could be that women wanted to show off their breasts but couldn't because of oppressive social standards, and only when white men brought cameras to them they were liberated at last.
>had to be still
see picrel
>>213153558
then why did peasants perform Jesa? obviously because they too were obligated to follow Confucian standards.

In final words, breast exposures wasn't just for feeding babies. it was a combined factors of late Joseon social reform, sexual liberation and long-term cultural evolution(Jeogori length continuously became shorter and shorter ever since Joseon dynasty was established).