Gold is not a stable asset, the dollar is also not a stable currency and other currencies are even much worse than the dollar. What is your point here?
None of them are stable assets but they are not as volatile as bitcoin, they do not get dumped and lose 80-90% in every bear cycle or in an unstable economy.
Bitcoin's liquidity is big enough to easily handle small reserves in the single digit billions. There is no problem relating to liquidity.
Bitcoin has a market capitalization of over 2 trillion but trading volume is sometimes only around 30-40 billion/day. Bitcoin liquidity is not really great and that is why the price always fluctuates a lot if someone sells a large amount of Bitcoin.
If the government sells a large amount to the market, not only will it cause panic but their profits will also decrease because the price of bitcoin will drop very quickly due to this news.
Incorrect, it is very easy. The problem lies in corrupt and vested interests that don't want to do this.
If we are realistic and face the facts, bitcoin is not suitable for national reserves and it brings more risks than benefits to that country.