[nordsieck]

> But why do the iPhone users tap in their passcodes in the first place when there is faceID and touchID available?

1. If you reboot your phone, you have to enter your passcode.

2. Some people prefer to use a passcode for legal reasons. Essentially the police can compel you to unlock your phone via faceID and touchID, but not passcode.

3. Some people might just like it and/or be used to it.

[WorldMaker]

2 can be mitigated by squeezing the top two buttons of the phone until it vibrates. Any attempt to go to the emergency contact/power off screen disables Face ID/Touch ID until after the next passcode use. (You don't have to entirely reboot.)

[nordsieck]

That is a fair point.

But sometimes you don't have the time. From what I recall, the police were able to apprehend Ross Ulbricht (of Silk Road fame) before he could log out of his computer.

[bookofjoe]

At least that's what happened in the (excellent) movie https://www.imdb.com/title/tt7937254/