We need cash for the old generation to transact. But encrypted money is the future because:
1) It reduces corruption. One of the primary reasons behind uneven distribution of money is that it is available mainly in cash form.
2) Crypto is something that can be integrated with other payment forms as well.
I like your first point. And you know why these government officials are opposing bitcoin, because they know if bitcoin would be there, their corruption shops would be banned.