i remember a high school biology class (grade 9 or 10, so 15 or 16 years old) where we were asked to draw the male body, and the teacher said that we could either draw the penis with or without the foreskin, it didn’t matter.
One girl, who I remember being one of the most attractive girls in the class, and an only child, asked the teacher what it would look like if there was a foreskin. He said that there would just be a bit of skin partially covering the tip. I remember she said “but like, guys all get circumcised as babies right? We wouldn’t really see that anymore at this age?” and another girl chimed in saying that her brother wasn’t circumcised so she had seen it. Lots of giggles and whispers kind of started at that point before the teacher moved on.