I think it will be adsorbed into CBDC infrastructure at an "exchange" rate, and made illegal, under some draconian double speak law relating to security, scalability, safety or the usual crap they filter things they dont want, interrupting their status quo.
As far as cbdc being used for control, I'm pretty certain after watching WEF/financial summit, videos and reading many PDF's from the BIS and IMF, and so on for the last few years, they want more control.
anything else will have to "blend into" their plan, or else.
They're sadistic.