Because there is no real adoption yet. What you are seeing about the using of bitcoin to make option for fiat is just temporary. Adoption is going to happen through getting it down in the book and the government endorse it as documented, then fear of using it will go out from majority of the nation who are banning it.
Hope you really understand what you really want a government to do, endorse or accept a decentralized currency is not going to happen, if countries like North Korea or Iran follow and start accepting bitcoin simply because of the restrictions they have from other nations and to overcome that i will not be surprised if they accept it but the rest of the countries it is highly unlikely.
During these lock down and with the speculation that the economy is in trouble i am sure people will find bitcoin interesting and see it as an alternative.