I agree with the comment of it being multi-signatory, and the banks who are the financial institution usually seeks to satisfy the interest of the gov't and not the individual(s)
do you think that banks are trying to cut out the governments as signatories in the alt currencies they are trying to create at the moment.
I don't see how this is possible, money control is a political move most of the time and the governments are always actively involved in it.
In China for example; which is the nation most interested in launching a centralized digital currency, the government set the deadline and give the directive to the People's Bank of China to meet that target. Some believe it's a move to try and overthrow the U.S Dollar as the global currency.
Other countries may be less stringent that China where the government has total control, but they would still be signatories to all assets.