I know it's a convention since the inception of the language, but the operator overload abuse of the bitshift operator still makes me sad every time I see it :(
Bjarne appears to prefer cout though, so it isn't universal.
On US layout colon is a single keypress but < is shift+.
This may explain the discrepancy.
—- from someone who read Bjarne at 16yo. All hail the Bjarne
Array programming languages smugly enter the chat