What is Stopping?
Why government Don't kill btc?
Why They protecting the btc?
Its Becouse They own Secretly btc?
Like They did with Gold in USA They banned Gold then They Secretly bought Gold in history
Government can't kill bitcoin because government has no full control in bitcoin because bitcoin is a decentralized digital currency. Also, maybe you have a point, maybe government officials own also a bitcoin secretly for their own or they invest into bitcoin to support the economic financial system because they know bitcoin is a good investment nowadays. Nobody know! But the important is we are free to use bitcoin and other crypto currency.