Traceability in the real world banking institutions has its advantages. As a business owner I've once had a mistaken transactions that resulted in erroneous withdrawal of +10,000 from business bank account. A phone call to the bank and a bit of investigation fixed things and I don't think the bank was out any money either, it was just a wrong account number issue.
With bitcoin, things are not at all reversible.
Also I expect bitcoin to be shutdown because it could be a great way to fund terrorist activities. (There are major federal investments in anti-money laundering systems that monitor bank transactions, bitcoin transactions operate outside of this system and thus will be suspect.)