Because they bitcoin is more good than the bank and other business and they afraid many people will more believe to btc than bank or other business

The government holds the best interest of its people and at the same time if you look at governments like the US, they are heavily influenced by the big banks. At the end of the day banks and financial institutions are scared so they get everyone else like that too so they dismiss btc.

Bitcoin is in a bonafide official downturn, the first serious one of it's existence. Bitcoin has been rising since Sept 2016, 15 consecutive months, from $611 USD, to $19,891 USD over that time span, an unbelievable feat. At some point, a serious downturn had to happen, and so it is upon us. The Monthly W% is at -39.71. This is the lowest it's been since Jan, 2016, so you can see the level of impact

The Daily W% is at -83.24 getting ever so close to the -90's, if reached would put Bitcoin in the cellar. That would be a first. The Parabolic remains a BUY, which I think is crazy, but it is. This downturn is warranted. Price cannot continue upward month after month, the process doesn't work that way. Yes we've had a few retracements, but they were all short lived. Based on the indicators, this may last for a longer period of time than we are accustomed too. Bitcoin Investors have been spoiled with financial success.

Bitcoin can fall back on the strength of its Monthly time frame. The Bands are Diverging and MACD is rising. This downturn will be its first serious challenge, and the key Indicator at this point is its W%. How low will it go. I'll keep you informed.

Because there are some people who are using bitcoin illegaly and they are afraid that it will also happen in their country.  So what they did is they will not accept bitcoin so they can keep their country safe from terrorism. But bitcoin is just a cryptocurrency.  Anyone can use it whether for good or for bad purpose.

People worldwide nowadays don't know what's the good stuff and deals about bitcoin, they will crash bitcoin because they don't have this, they're to late already to invest beacuse it's already high profit.

Listen, I think you're wrong. fraud with digital currencies and government attempts to begin regulation of cryptocurrency are in no way connected. these are two separate directions about which you need to speak separately, otherwise everything is shifted into a heap and then you will not be able to make out who had in mind what circumstances. India regulates cryptocurrency for the ability to influence money, this is the only reason they have claimed on tv

Fear of bitcoin will only make you can not see the world of cryptocurrency full of huge profit. you should try to learn to understand bitcoin and do work with bitcoin.
you can ask someone who was first in bitcoin so that fear can disappear and be changed into a big money.

Government cannot control bitcoin so they have a power in community to dont use bitcoin. Bitcoin was not recommend by other country because some investors, invest in bitcoin.  Bitcoin doesnt have any taxes to paid some country thats why it is not good for country.

These are some reason why some country banned bitcoin.

• Transaction by bitcoin is highly anonymous so bitcoin can become a tool for crimes like money laundering, drug trafficking, tax evasion, illegal payment,” the central bank said in a statement
• of a lack of existing laws
• in the buying and selling of scrap metal and “waste products”. This sets a bad precedent of government interference for the future, but so far the ban is restricted to this industry by all accounts.
• Purchasing them may violate the Icelandic Foreign Exchange Act, which specifies that Icelandic currency cannot leave the country. A nebulous designation, but it sounds like it is banned, in effect.
• It is a common misconception that bitcoin and digital currency are totally banned and illegal in China, but China has become the world’s largest bitcoin trading market. The bitcoin ban is strictly on banks, as the central banking authority, The People’s Bank of China is owned 70% by the Chinese government. Banking institutions and employees are banned from engaging in bitcoin business through banking, as well as servicing or doing business with the bitcoin industry. Trading or mining in bitcoin is not illegal for common citizens.
• It is illegal to use any currency that is not issued and controlled by a government or an authorized entity.
• bitcoin’s lack of “a central payment system” which could lead to people being “financially harmed”. It invoked the provisions of the Foreign Currency Control Act of 1947 and the Money Laundering Control Act of 2012. Then, added that trading in bitcoin

https://www.ccn.com/top-10-countries-bitcoin-banned/

The way bitcoin was rising from $1000 to $19600 and now again rolling back to $12000, this whole journey is surprising, unexpected. No currency in history was so volatile. Bitcoin is a decentralised currency backed or regulated by no authority. So fear and uncertainty is always their n the minds of many. Many economic experts call it a bubble or hoax. Some term it as an internet fraud. Rising price and peer to peer exchange quality making bitcoin popular among illegal activists. That is why many countries have banned bitcoins operations in their economy. Countries where bitcoin is accepted as legal currency are also planning to regulate the same. So fear about bitcoin will always be there.