But you will agree the world is going digital and people are more comfortable making payments through digital means than with paper money. This will help reduce cash dependencies, it will promote low cost transactions, it will limit the risk of bank failures and improve privacy.
Bro, it's not possible dealing without paper money, it's the bedrock of any monetary policy in any nation that's why some sectors doesn't accept digital means of payment in their business, there's a reason why. Everything must not go digital even if people is saying digitalization is civilisation bla bla.
I bet you, there are business associates that wouldn't support the Digital Euro for their daily transactions which are the drugs dealers or other illegal business dealers. And I'm pretty much sure that any payment app designed for payment will have a certain restrictions on the amount of transaction to be done daily.