She worked part time at bento store. Not convenient store? Bento store didn’t sell condoms and i have tons of friends whom I educate them on sex edu when I was in university because they didn’t know about condoms, woman and men physical intimacy and etc. They do know about sex, a method to make babies but that’s it. Some people have very little to none exposure to this kinda things especially Asian household(speaking from Asian background). Especially places where talking about it considered taboo or lewd. Mine excluded cause my mother wanted us to protect ourselves so she made us understand about it from very young age.
I hope you this helpful.
My only objection is... If she worked part time in a convenient store where people might often buy condoms then how the fuck she doesn't know about how condom or even its packet looks like ??