Many people have been talking about a full government ban towards Bitcoin. Some said that Bitcoin could be banned the same way Gold was banned a couple of years ago. This is to prevent people from using Bitcoin and other cryptocurrencies on top of Fiat. After all, governments want to control people's money. Something that's decentralized and outside the reach of the government, should be banned from the face of the Earth (according to governments' mindset).
What do you think? Will governments (especially the US government) ban Bitcoin like they did with Gold? Or is it too late to do something about it? Will Bitcoin survive if all governments unanimously agree to ban its usage worldwide? Your input will be greatly appreciated. Thank you very much.

Banning gold is easy because you can stop it at the airport, it is visible and physical. You just confiscate it if somebody tries to transport it. Much harder, if not impossible with Bitcoin in my opinion.