I don't know where courier blues is from, but in the UK most people have left school at 18. They're either at sixthform or college at 18 or at uni if they're older than 18, but its not usually referred to as "school".
from U.S., and yeah its about same here.
You see, Americans don't have tea time, therefore we can play longer.
thats stereotypical and therefore irrelevant.