Why do they need a crypto currency to achieve that? How is it superior to just a number in a database to represents your balance on facebook? Facebook is centralized what advantage does a decentralized currency have for them?
Venmo/Paypal seem to have no problem achieving this without a blockchain.
If you want global adoption, make it open. That's what Android does. That's what Linux does. That's what cryptocurrency achieves. That's what Facebook wants.
Venmo/Paypal seem to have no problem achieving this without a blockchain.