How come Deutsche Bank, a German bank, is the first bank doing this? And why now? Is it because the less friendly political stance towards Europe from the US si

How come Deutsche Bank, a German bank, is the first bank doing this? And why now? Is it because the less friendly political stance towards Europe from the US side that the tables have turned a bit? I also wonder how much political backing a bank needs to offer a service with the implications towards the status of an allied currency as reserve currency status - small as it may be for now.