Of course, Bitcoin can be a world currency. However, Bitcoin is not valid in all countries. But seeing the popularity of Bitcoin,it will be the world currency for a time.Only the bitcoin has been known in all the countries, which could not make any other coins.Everywhere they are Bitcoin,world Currency Will be.
I agree with your opinion.bitcoin is largest online crypto market. this is popular currency.so i still believe bitcoin can be global currency.
Being a global currency mean bitcoin will accepted in all country in this world, it really won't be happen. From a long time ago, a country's decision to ban bitcoin remained unchanged, even when bitcoin prices soared. From there, at least we have seen how it will go forward.
Your opinion is true, if bitcoin becomes a currency around the world it seems very difficult right now. because the government in several other countries does not approve bitcoin as a legitimate currency. this shows that the use of Bitcoin is only in the digital world. so it's very difficult for Bitcoin to replace paper money now.