Don't ask me how, but I just KNEW they were British, and super liberal brits at that.
I don't really get this. It's not necessarily a bad thing, but seems like it'd be more of a hassle than anything. I don't see how calling him a boy, is stereotyping honestly. He has a penis. He's a boy. It's as simple as that.
Telling him that men have to be this way or that way, is stereotyping, but in my mind necessary stereotyping, because he will never be accepted by men in this world unless he acts like one. Gender roles are engrained into our culture, whether anyone likes it or not. It's different than racial stereotyping, or shit like that.
But telling him he's male does not "box" him in. It is a label yes, but there are males, and then there are females. Females have vaginas and boobs, males have balls and a dick, and YES it IS that simple.
I'm not saying it's necessarily a bad idea, or that the kid won't turn out right, he probably will. All I can really say is that the parents are real prudes. You'd have to be very prudish to do a thing like this.
Probably why I wasn't surprised to find out they were British.(no offense)