At school there was a fella who admitted to having no foreskin and he got quite badly bullied for it. Wasn't until years later I found out that in America it was the norm.
To stay on the original topic though I would suggest one of Louie Theroux's recent documentaries he did about young children going through sex changes. I can understand people feeling more comfortable as the opposite sex to what they're born but seeing parents putting kids through sex change therapy from the age of about 6 felt a little too soon. Kids go through phases all the time so it seemed weird that they would do something so life altering to their child at such a young age.