Governments have imperfect control over money. Outlawing private gold ownership and banning cash are two examples that are noteworthy because they were so extreme. Each created a huge amount of controversy and havoc, and also required leaders to obtain buy-in from legislators and other political figures.
The point of many CBDC electronic currencies is to reduce the barriers to this control, so restrictions on currency (such as expiring currency) can be implemented with a few keystrokes on a computer rather than, say, requiring everyone to turn in their cash and jewelry.
The point of many CBDC electronic currencies is to reduce the barriers to this control, so restrictions on currency (such as expiring currency) can be implemented with a few keystrokes on a computer rather than, say, requiring everyone to turn in their cash and jewelry.