I dont think there is plan to make no cash system.
I rather think that CBDC is More like the way to create value and wealth backed by real world assets to track the value of the real world real assets the tokenized system will be used.
The real solution here is to replace the current unfair money creating system creating money out of nothing. 

There is no need for eliminate cash the cash will stay there no reason to eliminate cash.
I think its missleading Information like someone had Information and now will change the info to make it look like more bigger more drama and more fear and confuse so its kinda alt media what sells fear...  to people but in maximum.

Its just the bitcoin going to be like gold was they made some mistakes in history when the central bank gold was sent to forth knox and stoled from there....  now they have bitcoin wich is far more safe

My conclusion: the cash will stay just the way to create the wealth and money will be changing.