There is a discussion iniciated in the link below about why CBDCs could be the faster way to HyperBitconization. Even my grandma will opt out of the CBDC and start looking for alternatives once she realizes about the control of the CBDC.

The CBDC is a perfect tool for an authoritarian country like China, but it doesn't have place in modern world.

Now, for Banks to send monies between them and with central banks, better than using swift... Sure, they can do whatever they want, but they are not going to be able to impose it to the people