In other  about bitcoin and how it's doomed to fail, I've seen multiple redditors claiming that governments can easily ban it, and kill it before it becomes successful, or even after it becomes successful, be simply passing laws against bit coin. After some thinking, I'm convinced that even if they tried Government will not be able to do so. Here is my argument 1 banning citizens from having a bit coin wallets. wallet files are just like any other file on a computer. Banning certain files from a computer would require monitoring of all computers out there, would be really expensive and practically impossible. even if it was easy to do, a wallet file in essence is just two really long numbers a private key and a public key , that can be written down, remembered and encoded in any communication method that exists out there, banning the use of wallet files would require constant monitoring of all communication systems out there. 2 targeting business that accept bitcoin This approach makes more sense than the first one targeting users , but still has multiple problems. The law needs a clear definition of a crypto currency, that only included crypto currencies but doesn't affect any other method of payments. Business now accept all sorts of payments including cash, credit cards, debit cards, gift cards, loyalty programs such as air miles, foreign currencies, IOUs, favors, or even no payment. how do you define crypto currncy in a way that doesn't restrict any of these methods? 3 target the exchange of money to bitcoins and bitcoins to money It will be really hard for the government to prevent people from meeting in public and transferring money to bitcoin. Unlike drugs, bitcoins are digital, and psuedo anonymous, so a bit coin transaction just looks like one person giving another money. Making this illegal would have many implications and is fairly unrealistic. preventing companies from exchanging bitcoins online would be hard, as companies can set up shore offshore and in a different country. Government can make the use of bit coin hard, but a full ban is extremely impractical.
for practical reasons governments can't ban bitcoin, even if they wanted to.