America is so stuck in legacy tech. Nobody checks signatures. Strong Factor Authentication requires min 2 of 3. India is leapfrogging to biometrics using Aadhar. Europe is current with chip and pin. America is in quill pen stage
The USPS sadly still forces credit card users to have signatures on the back. They don't check signatures against the PIN pad / signed receipts, but the clerk will either yell at you or refuse the transaction if you have "Ask For Drivers License" on the back of the card. This has happened to me on more than one occasion.