No government never want some thing in their country in which they have no control. Cryptocurrency is a decentralised currency which is not under control of any government. Cryptocurrency directly affects an country economy by affecting their country national currency value at international market. And this thing turn many government against of cryptocurrency. Cryptocurrency volatile nature and its untraceable transaction also created many problems for many government. China, Bangladesh, Ecuador etc like country already ban cryptocurrency in their country and also put pressure in different country to do that same.