In my time we were reading textbooks and write in notebooks at school. Some clever and mostly boring stuff. It looks like modern schools are quite different...
I don't think that difference is THAT big. I'm sure a Great War era soldier would have accommodated to the modern drone war in no time. Rifle? Yeah, it just have an automatic fire mode nowadays, but the principle is the same. Trenches? Yeah, trenches! Artillery? Less artillery, but with addition of missiles and drones, so 20 km from the frontline isn't safe anymore, but the principle is the same.
Slightly more differences for high officers, but those are working with maps and less affected to those differences.
Orwell: Liberalism is restrictions.