I like new coins.
Some time in June 1982, I got change from a shop that included shiny new 20p coins.
The design was like nothing I’d ever seen before in British money – heptagonal like a 50p piece but much smaller and lighter (the new light 5p and 10p coins were not to appear for another 10 years, and the lighter 50p coins not for five years after that).
I recognised it instantly as a British coin, but a new coin for a different value. I liked it. (I had a similar feeling when the £2 coins first appeared in 1998.) And in 1982, I had had no idea that 20p coins were about to be a thing.
Today, 28th March, new £1 coins appear: dodecagons. We haven’t had dodecagon currency since the thruppeny bit was discontinued in 1971.