Not all authentication methods are created equal. Each has its advantages and disadvantages but the combination of inherence (something you are) and possession (something you have) avoids many of the pitfalls associated with knowledge factors (something you know).
But the market has not followed as swiftly as some would like. As recently as 2022, 85% of US banks relied on username-password as the primary way to authenticate returning customers.
While passwords, PINs, email, and SMS OTPs are well known, they lack identity assurance—a key component of any strong authentication system.