Or don't stop using cash. Stop using your phone or even your watch as a banknote. At the same time avoid the risk of having your card cloned at cash points, by hand held card readers, oyster readers and point-of sale terminals to name a few. God only knows how much damage we're doing to the planet because all the above must require a hell of a lot of resources and juice from the grid. It won't happen though.
I know of quite a few people who deem carrying cash about as a pain/ chore. But not a big lump of plastic with a screen and full of personal information that can be easily gleamed. I feel the same about carrying a phone about so i don't most of the time. I'll be in the minority but certainly don't see or treat a phone as a necessity. You can't get a banknote out of your sky rocket with a phone in your hand. It's become a source of dopamine for many. It's an addiction for many. They're an easy target for thieves. They're a godsend to cyber fraudsters who are stealing billions and are doing so without the need of cash points.