I agree in totality that the digital model can go along way to reduce transaction costs. However, i think their other determinants not being considered here. In Kampala where i am writing from, cases of fires burning large sums of money in shops and markets are common. there are also studies that have shown that 60% of our people do not touch something called money all year around. in this case i tend to think that such innovations have to also deal with the demand side. Do people actually understand the need for such services, why do business people in Kla keep money in shops where there more than 28 banks with several branches,why do educated employers pay their workers cash and not use banks.