Now I'm curious, because here the boys would have been grossed out amd insisting they shouldn't be there and they shouldn't know, and the adults would probably agree and not educate them about something that's likely to come up even in their life having girlfriends and such who tend to do that menstruating thing.
Yeah I’ve noticed that American culture seems utterly immature and embarrassed by such topics
No offence
In my experience (and I’m sure this differs from others) by maybe grade 4-5, which is roughly 8-9 years old, the boys in my classes were all very calm and listened to the sex Ed classes in bored silence.
I’m sure they joked immaturely with their friends outside of class. But you rarely had boys or girls snickering or giggling or too embarassed during sex education classes. Because by early high school, which for us is grade 8 or 12-13 years old, you already had like 4 or 5 classes on what happens during puberty. Not in detail mind you, that came a little later. But the basics anyway. So we were kind of just used to it by then and shrugged off such information as just another class
I remember in grade 10 (15 years old) my biology class, which was an elective course, did an in depth graphic explanation of what happens during puberty, menstrual cycles, sex and pregnancy. No one was grossed out, no one even made any reactions.
By then I already had 2 elective (health/home economics and PE) and 1 mandatory courses (sex education) specifically on puberty and the menstrual cycle