Bitcoin is easy to use but you still need basic level of education to know how to use it.
From my personal experience, I can say that for the vast majority of people Bitcoin it is still complicated, especially in terms of transactions, private keys, public addresses and setting fees. People are just used to someone else doing complicated things for them (a bank clerk), or taking their card and using it at an ATM or POS device in a store - all you need is a 4-digit PIN - quite simply - or it could be even simpler with the face recognition technology associated with a bank account.
Governments are doing their best to make sure that never happens. In the past they called bitcoin a scam and declared it illegal.
In fact, there is no need for governments to make any drastic moves (at least not globally), because as we have already concluded, people are still not ready for what Bitcoin was created for, and for the most it is too complicated. That is why the best estimates range from 1% -2% of the world's population who are in some way involved in crypto. This is too little to pose a threat to the current financial system.
Best case scenario, the government will create their own cryptocurrency so that they still have control. Correct me if I'm wrong but libra coin is an example of such cryptocurrency.
This is already a done deal, most central banks are working on creating what they call CBDC (central bank digital currency), and China has already conducted very serious tests among the general population with its version of the coin. Libra (no longer called that - rebranded as Diem) is not a coin of the central bank, but of a private company - and it is nothing but stablecoin which did not go well in the first attempt, because of course the FB user base has 2.4 billion users who would directly get the opportunity to use it. Nobody liked that, especially the US and the EU, which were strongly against it.