Interestingly, I'd find #1 to be significantly harder than 2 and about half the scenarios in 3 [waiting for friends and would make me nervous without real time updates].
The temptation is too great to get bored and check my phone when I'm in the house with it.
You can set the phone unlock code to a very long combination and put the unlock code into a time-lock [0]. No temptation there, yet you can still take calls and make outgoing calls (using Siri or Assistant), use the camera etc.
The temptation is too great to get bored and check my phone when I'm in the house with it.