Over the years the fiat currency experienced lots of drawbacks and the primary setback is the issue of trust and security of database. And the blockchain industry with the innovation of bitcoin has helped in tackling this issue. The consensus found in fiat currency has been altered severally to suit the personal interest of it's major stakeholders but the interesting thing is bitcoin can't be altered due to it's highly level of how it operates anonymously.

This consensus alogrithim which the blockchain technology shares will some day call for global adoption although some countries has it as a legal tender while some are still fighting against it but I'm sure at the later end it will be globally accepted