When students in the UK first learn Latin using the Cambridge Latin Course, don't they already know about Ancient Rome and Roman Britain from primary school history lessons? So these topics don't strike them as totally new and unfamiliar when they read about them in their Latin books, right?
I've been looking at the school curriculum for our school in the US, and it seems that students who choose to study Latin (beginning in 7th/8th grade) are exposed to those history topics for the first time then as well (in Latin class, not history class). So they must not only digest new Latin grammar but also simultaneously new history topics that they were never taught before! (Only American history is taught in primary school.)