I personally would expect the Australians to know something, especially history, about the Netherlands.
As parts of Australia were "discovered" by Dutch sailors and or even named for Dutch people. For example the birth place of Mary, Tasmania, which is named for Abel Tasman.
Also a lot of Dutch emigrated to Australia, especially in the years after WW II. Just like Canada, which was very popular.
We don't teach that aspect of Australian history anymore in High School and what is taught in primary school is largely forgotten within a year or so of studying.
The High School course we study requires no study of anything of Europe until the start of WWI.
Year 7 - What is History; ONE of Ancient Egypt, Greece or Rome (most popular by a long way is Ancient Egypt) and then ONE of Ancient China or India.
Year 8 - Links from Ancient to Medieval World; ONE of Medieval Europe, Vikings, Ottoman Empire; Renaissance Italy (most popular is Vikings with Ottoman gaining in popularity) ONE of Black Death; Spanish Conquest of the Americas; ONE of Angkor Wat; Tokugawa Japan; Polynesian Expansion across the Pacific and ONE of Mongol Expansion; Black Death; Spanish Expansion into the Americas; Colonisation and Contact in Australia - the most popular which looks heavily at the negative impact of European colonisation on Australia's indigenous population - it isn't designed to say that the Europeans did anything of any nature that is positive
Year 9 - Links for Medieval to Early Modern World; ONE of Industrial Revolution; Movement of People - slaves, convicts and free settlers; or Development of a Range of Historical Concepts (the most popular option); ONE of Making a Nation or Australia's relations with Asia - the more popular of those options and the mandatory study of World War One (emphasis on the Gallipoli Campaign - about 30 minutes to an hour maximum spent of the rest of the war and a lot of emphasis on the Australian Home Front)
Year 10 - If World War Two wasn't done in Year 9 it is to be done in Year 10 (when my school does it) with the emphasis Kokoda - hardly any mention of the war in Europe as the emphasis on the war against Japan and what was happening on the Australian Home Front); Changing Rights and Freedoms - emphasis on the fight for equal rights of the Indigenous Population here and some mention of similar fights elsewhere; the final unit is a choice of a number of units relating to Australia or the Holocaust - which a lot of schools do although the most popular is Australia in the Vietnam War Era as it was in the old syllabus so many schools kept teaching it.
As you can see there is very little if any European History in the compulsory high school History course. My school does quite a lot compared to many other schools but even so it is no more than 1/3 each year. With the course is only 50 hours per year we are talking about around 15 hours a year maximum on anything European.
When I was first teaching High School history in the early 90s we did a bit more with options like Queen Victoria and the Abdication Crisis being on the course for the final two years but British History is now not taught at all. The rest of Europe gets even less of a mention other than Nazi Germany and Stalin's Russia.