You don’t need crypto as an alternative to MasterCard/Visa. There are multiple national payment systems that de facto work on a public benefit basis or offer no fees or very low fees.
One major example is India’s UPI:
en.m.wikipedia.org/…/Unified_Payments_Interface
Even in a medium sized developing country like Ukraine, I can send to anyone money (P2P, business payment, business transaction) with minimal or no fees on a near instantaneous basis off my phone.
I am not on top of recent payment infrastructure developments, but from memory this is relatively common.
No need for scam services like PayPal, Venmo.
And this has been avaible for half a decade minimum (was living in another country before then).
MushroomsEverywhere@lemmy.world 13 hours ago
As I understand it, cryptocurrency funnily enough works awfully as a means of transaction, because the amount of processing power required to make transactions is ridiculously high.