Actually, the Italy brothers have been confused for each
other before. During the Christmas 2011 event, Cyprus can’t differentiate between
them and comments on how similar they look. Romano’s annoyed response hints that
this isn’t the first time he’s explained their differences.

Likewise, just before, Canada isn’t remembered. What I find interesting is that it’s Italy who recognizes him.

I think what distinguishes Italy and Romano from each other
more so than the NA brothers is that the formers’ personalities are conspicuous;
they stand out more.
Because Canada is soft-spoken, he’s easily overlooked. Meanwhile, America’s boisterousness is more memorable.
