In the UK the government are making a digital blockchain passport. I agree private blockchains are good, but I see no good coming from a government blockchain where they can stop you spending and blacklist you for saying the wrong things like they do in China.
Every aspect of peoples life will be monitored and punished via a government digital ID blockchain.

Imagine voting for the losing party (politics) and getting punished for it. That is a possibility.
I see no good from a cashless society with government con-trolling us by blockchain from birth to death.