Bitcoin isnt made for this and Nakamoto doesnt want this to happen to his creation but criminal minded individuals wont stop using any financial processes to theyre advantage. Bank been used before, remittances also and especially cash basis.
So as bitcoin and other altcoin.
My thoughts:
Do we have stop using cryptocurrency for this reason?
No and I will not.
Do government have to regulate it?
No at this point in time. Soon maybe if they can craft the best law that is fair and square to both the investors and the law enforcers.