Telling my friend's teen that when I was her age and fancied a boy, my only chances of catching a glimpse of him usually were bumping into him at mass, and poring over the local newspaper as there sometimes would be a picture of him in it as he played minor's football and also played in the scout band. How archaic!
Saying that I feel like I'm in the Krpten Factor if I have to do something difficult or complicated. Blank stares.
Recently at the school gates another mum (a lot younger than me) made some complaint about it always raining on her, I said "That's because you lied when you were seventeen" and she just looked at me, puzzled...
One time (and this is years ago now, maybe 15 years ago), a young student of mine was looking in a confused way at the pink vinyl 12 inch record on the turntable on the top of my hi fi... then he said to me "Why's that CD really big?" ... I suddenly felt really old.(Of course even since then, CDs are out of date too!)
Recently my sister's car broke down in a really awkward place that was a bit of a hazard so we had to inform the police. Two policemen came out to us. I was thinking, holy shit these two both look about 12 years old... man I am old!