:)Governments sometimes say Bitcoin has a bad image because hackers and scammers can ask for payment in it. However Western Union has been used by the Nigerian prince scammers for years and no governments talk about restricting its use, regulating it further, or banning it. IMO the dark side of Western Union is far worse than the dark side of Bitcoin.
It's true that criminals can use both- WU and bitcoin for their purpose.
Recently, at least in my country, I know that WU had to change policy, and now asking ID card from everybody, sender and receiver of money.
With bitcoin, nobody ask you about ID card so I think that criminals prefer bitcoin over WU now.
Just a few weeks ago I heard story on news that police catch some drug dealers.
They find and ordered drugs in the dark web and paid with bitcoin.
So, from this viewpoint, WU is better than bitcoin.
Yes, it's back to our perspective to see it all. The government is bound to say something like that, a lot more negative responses than positive advantage gained when conducting transactions with Bitcoin. So it is one of the main reasons why the government does not agree with the legality of Bitcoin