Copenhagen, Denmark recently launched a carbon-based social-credit system called "CopenPay". It isn't mandatory now, but it could be soon. Right now, it only gives rewards in the form of "cultural experiences" for those who rent bikes from certain bike racks or use certain public transportation.
I recommend boycotting tourism to Copenhagen all-together. No point in visiting a city if certain attractions are blocked off unless you use a spyware app that rates your behavior. Small businesses in Copenhagen should reject implementing this. Even if it becomes mandatory, DO NOT COMPLY! Get a bunch of other businesses to stand up with you. It only ends when enough people refuse to comply.
@beardalaxy Someone should fly to Denmark and put that everywhere as stickers.
@xianc78 cope & pay