Dunno...you could be right. I've really only got the one experience to draw from, and that's the American version. :) But I would assume that they have the same groups, maybe just with different labels. It's human nature to seek out a group to belong to, especially during the teen years when there's so much confusion and uncertainty in life anyway.

And I did say that the lines are somewhat more blurred than that in HP...the labels are more a reference rather than a cut and dried mold. But I still feel that the breakdown is clearly there.