…even though they have not really gone away.
The red post box
No-one sends letters any more?
Well yes, they do of course. You can see old red postboxes, but they are getting fewer.
So many in London are doubles, like the one above. You can tell the age from the front. This one says EIIR for Queen Elizabeth the second, so, since the mid-1950s.
Modern ones have no character, but there are some very old ones about. We remember Hampstead and Windsor.