Reportedly US Banks are going the treat Bitcoin (BTC), Ethereum (ETH), and all crypto purchases same as Cash. In the crypto economy, this move is going to be a milestone. 
There are banks in Germany that offer regulated custody services but I'm not sure they treat cryptocurrencies as cash. Banks lately found out that cryptocurrencies have a good chance to become the future of currencies and are creating some services that might facilitate trade and investment exposure. Still they don't fundamentaly change their centralized systems towards massive adoption.