Nanny state, just like the name suggest, is treating people like immature children by telling them what to do with their own money.
This is unacceptable and in fact, harmful in the long run. Pension plans have a tendency for becoming ordinary Ponzis, no one should be obligated by law to take part in a crime. Ideas like this have the potential for shooting cryptocurrency prices very high, however any issues with the system itself can and will do the exact opposite. Broken pension Ponzi will be like the darkest PR imaginable. At the end of the day, this pension plan is just another financial tool, designed to control and make money out of naivety of regular folks.
Why would anyone need a fin-tech firm, when they can do the exact same on their own?