I have a Brazilian friend; her mom genuinely didn’t know how babies were made. She had no idea about birth control, or that having sex is what caused her to get pregnant. My friend here in the states lived in a rural area and her sex-ed teacher seriously pronounced vagina “vah-jeen-a”. Needless to say, she didn’t learn much. So I guess it depends on what country, state, province, city, or town you live in and at what time in history.