At school in the 40's and 50's we learned nothing of the two world wars - history lessons started with the Beaker People and ended with Cromwell.
This mattered not a jot, because we all had family who had been involved in both, in my case a Grandfather who was shot 3 times in the Great War, the last time on the Somme, shortly before reaching a German trench and captivity for the duration. All this after previously being in the Boer War...He died in the late 60's seemingly unaffected by any of it. My father was in both wars, so as you may imagine there was no shortage of information, especially when they'd had a drink....
I think my point is that people of a certain age were educated in all this stuff by family and friends who also had family in it, which was just about everybody.
At the time of my marriage in the 60's my wife's grandfather was 68 - he had been at Ypres and still suffered the effects of being gassed, but despite this had worked as a maintenance engineer until retirement at age 65.
The Boer war was also a large conflict involving over a quarter of a million British troops and proportionally large casualties of 22000 - I wonder how many people could name even one battle from this?
(with the exception of the obvious one)