I've just read the Dutch gov's reports on experimenting with blockchain tech. They try to portray it as a huge improvement to their administration processes (which it probably is), but to me it seems the most important thing they try to achieve is to collect taxes more effectively. They've already run a pilot for collecting tourist tax that they miss because of platforms like Airbnb, and now they want to register students' income on the blockchain. Young people in the Netherlands who work part-time, often work off the record because it's easier to keep it off the books.
I'm not very fond of governments co-opting crypto...