I don't get it. The government could just ban the things it doesn't want instead.
Also, nothing stops people from buying the goods in question by using a payment service provider/bank that provides a layer on top of the CDBC and automatically circulates the money for you behind the scenes to avoid the expiry.
Also, nothing stops people from buying the goods in question by using a payment service provider/bank that provides a layer on top of the CDBC and automatically circulates the money for you behind the scenes to avoid the expiry.