My warning is this: Be careful what you wish for. If we were to switch to a full digital currency, there are significant concerns that money could be allocated like a voucher, where it could be sent and only spent in a certain way. Suddenly the government decides those receiving some kind of social care allowance must spend different parts in different ways, i.e. a minimum of 50% MUST be spent on rent (an extremely enticing proposition in a recession). Perhaps there is a tax for not spending enough, or on the correct thing. Perhaps there is a micro-tax for moving it around. Maybe the micro-tax is dependant on your social credit score. The slippery slope goes on.
The only thing currently stopping this is that you can withdraw your entire wage each month and spend it however you want, without such a tax. The government or banks cannot be certain of precisely how you spend your money when using cash. The very moment cash is gone, such implements can be created and there is nothing you can do about it.
Maybe I am behind the times, but I don't like the sound of "disruption" in the banking industry. That last time I saw "disruption" was in 2008, and many people lost their homes.