Although you must admit that the concept is quite interesting. I wonder how they regulated this on the national law level.
Assuming those coins will sky-rocket at some point, will those grandpas be given huge pensions?

I think this is the real case here, who will gather all the real profit? I'm more than sure that those elders will get forgotten, money will go to CEO's and higher level management, as well as politicians... grandpas will be left with "good old" social standards.
And when those coins get to the bottom, guess who's gonna be left with absolute zero...
This is how it is with national foundations,
profits get personalised and losses nationalised.
As I heard the Germany pension fond had some ideas about tying the fund with crypto currency. Don't know how far that moved for now.
I bet that's the point, if they skyrocket the grands going to be rich. And during that the pension fond is using that coins for it's purposes just like banks use your money for investing.