Cryptocurrency is a decentralized system and nobody can middle those transactions between the two entity, even government or bank has no control over it. You basically own it and you have all the control on how you want to do with it. There is no central authority or body that controls it even the government can't come out there and control it. Everybody can do what they want and whenever they want and this will give both good and bad:
Good - in the sense that countries out there that have oppression or people that have their bank accounts seized don't really have to bother with that because Bitcoin and cryptocurrencies in general give them independence from that. They can transfer funds out of their country safely without the knowledge of the authorities. Nowadays, more and more people were investing in cryptocurrency to make a living and support their family's needs. It actually gives an extra income for those working individuals who have low salaries and not enough for their needs. It opens up a new horizon for business opportunity wherein having low investment with a high return but of course, the risk is always there in every endeavor.
Bad - Some people were using cryptocurrency for illegal activities. Back in the heyday wherein they use it on a platform called Silk Road - that could transact and buy illegal goods on this platform through the dark web. Their illegal transactions leaves no trace for the government authorities to track it. But later on, the government came and shut down the dark web for Silk Road but it couldn't shut down Bitcoin because it has no central authority, it's a peer-to-peer system. Others did some ICO launching wherein they accepted investors money which counts into millions of dollars and suddenly leave those pity investors with nothing thus making it a scam.
Some countries were passing a law to ban cryptocurrency and make it illegal for those who engaged in it. They are devising ways to shutdown the system and that is a herculean task to do it. They need to shut down an entire network or take down the internet just to stop the bitcoin transactions. Every individual or entity who engaged with cryptocurrency is part with the system and there is no core or central system that manages those transactions. The government can shutdown exchanges as what they have done recently in China and other countries but the bitcoin itself can't be stopped. As long as there is an internet and a blockchain system then bitcoin and other cryptocurrencies exist. I think it is the first time in history of humanity that something virtual and physically doesnt exist that are so expensive which surpass even the price of gold. The rise of bitcoin is incredably unbelievable indeed.