In the near future, i think more countries not only France and China will start to create and launch their own cryptocurrency because more countries are also starting to adopt blockchain technology and cryptocurrency, so i think other countries qhi banned bitcoin and crypto would also follow and create their own cryptocurrency.
It will be the standard in the next 10 years, you won't be making any transactions in a thrift shop without a phone app, so you'd be always have to bring your phone with you when making transaction. One of the project that may really be adopted is the credit card projects in crypto where we can swipe these cards to pay cryptocurrency for the grocery products we buy.
As of today only few countries are beginning to adopt digital currencies sooner, people from other countries will find it hard to visit France unless they have the coins so they better adopt crypto too.