What if some country decides to pay pension to working population in bitcoin ? What percent of people will agree to getting pension in bitcoin in your opinion ? What will be the benefits and limitations of this occurrence in long term on people and economy ?
This sounds impossible, mate.
Pensions are for old staff that have saved for a long time, and their age ranges around 50–60 years. How do you expect them to adapt to this bitcoin technology quickly?
Beside that, I don't think it is possible because the government in general has yet to fully legalize Bitcoin due to its decentralized nature. How can they accept it and decide to use it to pay pensions?
Unless some of them will accept Bitcoin, the majority of them will not agree to it because they will take some time learning about Bitcoin again.