With the Queen’s passing it’s probably a good opportunity to get rid of bank notes and coins.
Don’t really need them now and it would save the Treasury billions not having to mint and print new issues bearing King Charles’s head.
Likewise stamps. Simple barcode stickers is all that’s needed.
All very well for you technically savvy youngsters. Many pensioners have no idea what a bar code is. Few of them have computer keyboard skills even if they have access to a computer. A cashless society would be of no use to them. At my advanced age I do have basic computer literacy, but I still get great comfort from having a few quid in my pocket.