Mpesa is basically digital cash. Mshwari which Pundit has been boasting about 5 times each waking day is basically digital.
When Pundit goes to a bank and deposits money he thinks it is stored in those huge safes with gargantuan doors! No. The money is simply entered into a computer becomes digital. The bacteria infested (reason I only handle new currency notes) is carted off to the central bank where it is stored. It leaves behind nothing but digital money in the computers. Pundit can decide to send his money to China to buy another Faw truck. The bank will "wire" the cash. That wire is digital. No money may actually go to china. No. Because pundit's bank and the corresponding bank would be owing each other. So they'll balance it all electronically with pundits bank telling the chinese bank: that money you owed us, please pay for the Faw Truck. That's more like Electronic Hawala.
I mention hawala because the government doesn't like it. Why because nobody likes competition. Bitcoin is just the latest example of states fighting competition but realizing they were too late.
Btw Pundit, cryptocurrency is rising again. China kicked most out... why? Because it's launching it's own digital Yuan. Sweden too will launch. The old adage: if you can't swallow them join them