My dc1's father didn't know about the three holes until I told him. He was educated and intelligent and not of an older generation.
But some men just dont care.
Women should care. It's bloody important to understand how your body works.
Other similar ignorance that has astounded me-
-Not knowing that the placenta has to be birthed after the baby
-Never having felt inside their own vagina
-Not knowing the difference between the vulva and vagina
-Not realising that not everyone has a hymen/bleeds when first having sex
-That cervical cancer/hpv is sexually transmitted
-That there is no such thing as 'the pill' there are 30+ types, including 3 'generations' and the difference between the combined pill (oestrogen & progesterone) and the 'mini pill' (progesterone only) ie in how they work, when to take them and how effective they are.
The above reminds me of the professional woman who didn't know about the 12 hour rule.
-not knowing about the different types of abortion eg medical, vacuum, d&c and late stage.
-the worst of all though is the number of women I've spoken to who think they are obliged to 'provide' sex in a relationship 