Biometrics or your device passcode. My mom has a touchid phone (won't get the faceid due to paranoia) and she gives up on it during winter when her fingers ge

Biometrics or your device passcode. My mom has a touchid phone (won't get the faceid due to paranoia) and she gives up on it during winter when her fingers get cracked due to the heating. So when she logs into the device it always falls back to device passcode. I am frustrated they won't allow you to do both bio+code, because that would prevent my kids from flashing my pilfered phone in my face to get it to unlock then running away.