Of course they don't know what floppies are, just like I didn't know until told a few years ago about punchcards, and have no idea how computers were programmed before that. In a couple more decades the 10-20 year old age group will have no idea what CDs are. I don't find this particularly depressing (though I will be sad when CDs stop being produced as I prefer to buy my music in a physical medium).
Actually there was a recent series on British TV called "Back in Time - The High Street". They got a whole load of modern day shopkeepers and recreated high streets from various periods in history. When they got to the 70s, they added a record shop. One younger guy who had never seen a vinyl record actually said that it was nice to buy the music in physical form rather than a download. So maybe there's hope yet
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moto