the central bank is very smart and they realize that crypto is difficult in the weir. they continue to call on the FUD on crypto to banning many countries, but behind this central bank hoard btc and crypto to catch up with our investment.

Possible.

As you can see in some banking establishments that are rumored and said getting involved in bitcoin that only means that they know how its going to generate them profit. But it doesn't matter if they are secretly investing or not, this is why everyone is free to buy bitcoin and start making his own portfolio an empire.

I agree that if central banks will not be quiet about the development of bitcoin and crypto, some of them have started adopting blcochain for initial trials, I have heard that many banks have invested their assets in ripple and this is a big improvement

governments cant do such things secretly.there are financial audits. its only possible for dictatorships, emirates etc.so the answer is if there is a healhty inspect mechanism, its impossible.

A government is a body of individuals that makes and enforce laws within a particular jurisdiction,when you talk of government purchasing bitcoins do you mean individual members of the cabinet or the body itself putting heads together to secretly buy bitcoins..

The latter obviously doesn't make sense,but definitely individuals are free to purchase as much bitcoins as you want, be you the president or Prime Minister et al,its all down to how much bitcoins you can afford
The Central Bank is a body that handle financial activities within the shores of a particular nation,i do not see the Central Bank of any nation secretly purchasing a well known threat to fiat currencies
 

I do not think there is. Bitcoin is decentralized and decentralized, it will be traded without the control of the government. That is why it will be difficult for the government to accept Bitcoin.
However, now it seems that the government will test the blockchain technology. This will make the country grow and not be left behind as technology is playing a very important role in daily life.

Everything would happen in this case, we can't know that for sure. But i believe that the goverments and the banks has plans about the bitcoin and cryptocurrency and they never tell their plans to anyone. But also i am sure that it will come out soon because they need to change lots of think before they loose. If don't change, the cryptos will swallow them..

I don't think governments will keep any invest in BTC for the moment, as I see in news, US authorities regularly auctions seized ceyto and cash out in fiat.

Different government have different agenda with bitcoin. Some of them have an good relationship with bitcoin where as some government ban bitcoin. Country like china, Bangladesh etc ban bitcoin in their country due to multiple reasons according to them the decentralised currency bitcoin affects their country economy by affecting their share market and national bank. According to some government cryptocurrency report, bitcoin help to increase illegal activities in their country by its untraceable money transaction facility.