How is any of that not possible with regular money and a regular bank?
It's already how MobilePay works in Denmark. You give the website your phone number, and a prompt pops up on your phone screen to approve the transfer, with an amount, in a native (trusted) app.
It's already how MobilePay works in Denmark. You give the website your phone number, and a prompt pops up on your phone screen to approve the transfer, with an amount, in a native (trusted) app.
Crypto doesn't add anything here.