Absolutely no, Bitcoin may become a part of the banking system if they find it useful enough. The governments need to control the money flow, so they may integrate Bitcoin into their system or exploit Bitcoin under table. So it is a brilliant idea to stock up with it anyway.
It doesn't need, though.
Bitcoin needs to be its own thing, because if BTC would be under the same umbrella as banks - it's no pure BTC, but a bit more centralized wrap up of it.