Europe is clamping down on cash, with in some countries placing caps on cash transactions as low as €1000.
https://en.econostrum.info/europe-restricts-cash-paymentss-n...
https://www.europe-consommateurs.eu/en/shopping-internet/cas...
https://en.econostrum.info/europe-restricts-cash-paymentss-n...
https://www.europe-consommateurs.eu/en/shopping-internet/cas...
That cap is about as enforceable as a cap on bitcoin transactions. Ie only enforceable on law-abiding citizens.