I think Bitcoin can survert traditional bank because of many countries afraid about it and Probably what you say is absolutely correct now that it can be said that bitcoin has beaten the bank on many things. I have also predicted that the future of Bitcoin will grow tremendously and reach the present high value that is my predictable .
How can you say that they are afraid of it? Its true that some countries that have already banned the cryptocurrencies but that doesn't mean that they are afraid of it, its just simply that they are avoiding something that may happen if they didn't take action over it.There are two options, its either they will ban it temporarily or they will adapt it.