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Bitcoin’s anonymous letters also have governments fearing it could be used for illicit activities and help increase crime. This is why governments don't like Bitcoin.
This is the downside that bitcoin will be decentralized so anonymous will be free to make any transactions. But that's not entirely going to happen, transactions in bitcoin can be tracked by the government because transactions are recorded in the blockchain ledger and cannot be deleted. Although there is a Mixer platform that allows transactions to be hidden, in the end, large transactions can be tracked.
The problem with the government is that they are trying to control all aspects of the life of the population of the country. They want to monitor our every purchase, every payment, that everything is available to them, that every dollar is taxed. But no one likes to live under surveillance, if a law-abiding person works and pays taxes, then he does not need such control. Governments are not perfect, you are right, they are made up of people who can make mistakes.
Governments have full authority when they regulate Fiat, society must abide by those rules. When the government has no control this will endanger them. Currently, even the government provides clear rules regarding taxes on bitcoin or cryptocurrency and these steps are taken to be able to generate income from transactions made in crypto and supervise those who use crypto through a Centralized Exchange.
The government provides rules so that crypto can run well, some government regulations are not always bad because some are governments that support crypto and some shun it.