shadows of echoes of memories of songs

I rarely spend time with people my age or younger (with one or two exceptions): the dudes and dudettes on my team at work have an average age of around 45, the majority of dudes I go down the pub with regularly are around 30-35. This is useful for making me remember that Actually I Know Nothing and that Hey, Reaching Your 30th Birthday Doesn't Mean Buying A Zimmer Frame. Just like I've stopped saying where I went to university, I've stopped saying how old I am (both are largely irrelevant). People often seem surprised at both when they find out! But I still get the winces/mockery when I mention something like "I remember singing 2 Unlimited songs in the playground in primary school", when the person I am talking to was at university then...