Earlier quoted context omitted.
Because there are many Americans who are small gov and against excessive taxation. A CBDC is "too far" for a lot of people who believe that.
Imagine being paid in a ‘programmable’ currency that your employer (or government) decides cannot be spent on alcohol, meat, or fossil fuels. Meanwhile, wealthier people get paid in ‘unrestricted’ currency.
Then you can enforce meat and fossil fuel rations with no way to buy yourself around it.