As u can see many country's banks are adopting bitcoins in their transactions
What are you talking about? Where can I see that many countries and banks, or "country banks" as in the central bank (if that's what you mean) of a given country that has adopted Bitcoin?
and I really feel banks will go down some day with just an app and websites.
Which is almost there already..
Once again I can't really figure out what you try to say. Either way, just to bring you back into reality, banks will never go down/vanish just because of Bitcoin (as that is the main subject here). They don't like it (perhaps even hate it), they don't need it, they are not interested in it. It's that simple.
Note; I am not sure whether or not you use Google translate, or just write your posts yourself, but at least try to put more effort into making your post understandable.