> I'm pretty sure that this type of data collection tool is in use today by the Chinese government.
Yeah US is a bit slow to that party. Alipay and Wechat-pay has roughly a billion users (conservative estimate) in China. It's widely socially accepted.
Makes more sense in the case of China, which never had wide adoption of credit cards. In Libra's case...why should I ever use it instead of sticking with credit cards?