Many countries are already initiating blockchain use in many sectors, even countries banning or threatening to ban Bitcoin.
After 8-10 years, i think this technology will be vastly used in the world.
Of course, the ability of blockchain technology proved on worldwide. Almost the developers are excited this technology. Many companies want to use this technology as soon as possible. Especially large companies like Microsoft, Google, Facebook, etc. all wanting to use this technology to improve the capacity to store and security data. You knew they have huge users on worldwide, if they use blockchain to apply in their system, no one can hacking their system.