I had a hard time adjusting after moving to Anam-dong for university due to my strict table manners upbringing.

I grew up in a household where men and women did not eat at the same table.
There were separate tables for men and women;
men ate only with men, and women ate only with women.
If anyone tried to talk during a meal, my father would say,
"Hush, it's too noisy. Who told you to talk while eating?"
Then, we would become a "quiet family."
Later, when I started studying classical texts and learned the "Sohak Jipju" (Selected Sayings of the Elementary Learning), it was written there too.
That you shouldn't talk during meals and should only focus on eating.
It felt like it took a year or two to break these habits after moving to Anam-dong.