vendors wont have to kyc is the money does the kcying for them. As for Bitcoin, it was a lot easier to sell BTC for fiat the last 15 years than it will be the next 15 years.
Discussion
There is nowhere to keep secret your wallet anymore . But talking about crypto , why CBDC need it? We don’t need them , cause all crypto transactions is actually transparent in the block chain ! There is no need of control there for fraud as all the transactions written in the blockchain . Everyone can see it .
The difference is that the CBDC is controlled by the central bank and the government. They do not need a transparent system. They need one THEY can control.
"money reigns the world and he who controls the money controls the crowd"