Cryptocurrencies are already here, they never needed government's permission or help. That's the entire idea behind them, in fact!
"The future of money"? You mean, the future of currency? For governments, a cashless society is the plan, using digital (not crypto) currencies. Notice the difference. Digital currencies are regulated. FaceBook is coming out with one called Libra. Crypto currencies are not regulated, and can't be regulated.
Asking governments to involve themselves in currencies is a terrible concept. Governments are the problem, and cryptocurrencies are the solution.