Yes obviously we all know a Blockchain can't reach into the real world and put a banana in my hand... But the point is that what does Blockchain give anyone tha

Yes obviously we all know a Blockchain can't reach into the real world and put a banana in my hand... But the point is that what does Blockchain give anyone that a simple app (zelle, PayPal, bananas r us, etc) doesn't? I still need to trust the vendor.