For you question Copago, I reckon both are probably true. -
I’ve always thought that the young folk were asking the question innocently, but even if it was suggesting some disrespect, it’s not incorrect given the period the song was written. The 70s was a period of very poor attendance from the public at Anzac parades and RSL’s. 70s kids didn't know anything about the great wars, and most likely didn't really care. There was a lot of other emerging pop/rock type cultures during that period that were far more interesting than showing respect for veterans of a 'forgotten war’. Does Bogle have the right to sing a song through the eyes of a wounded veteran? I'm not touching that one!
I find it really interesting the contrast of the 70s and 80s to now, in terms of support for the values of Anzac day. It's the young people who have picked up the baton and run with it to keep the tradition alive. Anzac Cove swells with tens of thousands of young Aussie kids every year paying their respects. Searching for a sense of tradition maybe? For whatever reason, it’s wonderful to see.