Those may be reasons for the development of Bitcoin, but Bitcoin itself is simply a technology. Any number of use cases may emerge from it, even ones we can't

Those may be reasons for the development of Bitcoin, but Bitcoin itself is simply a technology. Any number of use cases may emerge from it, even ones we can't foresee. It's entirely possible that Bitcoin transactions will largely occur between big "banks" and behind-the-scenes, and people will simply use their bank accounts.