The article is a few days old, but actor Alan Cumming offers an insight:
Cumming, an endearingly puckish type, is really rather proud of his foreskin. “During interviews in America, I have made a point of talking about it,” he says. “I think it’s insane that an entire nation is ignorant about a part of their body they have lost. When I take my pants off in America, people gasp, which is kind of nice, until I realise that they’re actually staring at my penis as if it’s some kind of National Geographic photo come to life. Nobody has a foreskin there. They’re, like, ‘Wow! What do you do with that? How does it work?’ ”
Worse, the ignorance is perpetuated intentionally.