Precisely. I’ll choose when to lock the screen - what if I’m using it to read a recipe, or looking up documentation, or I have a map on screen? Etc etc.
It seems like you should still have an auto lock to 30 minutes? Events way less drastic than an airplane door blowing off can cause you to not be able to lock your phone, like someone just snatching it out of your hand on the subway (where in theory they could keep it awake indefinitely with a 30 minute timeout but they very probably won't)
The maximum on iOS is only 5 minutes, and I regularly leave my phone untouched for longer periods than that while cooking.
I hear your point, but everything really important on my phone is behind another wall of passwords/pin protection, and I am meticulous about backups. The physical device doesn’t matter much. I’ll put it on stolen mode remotely, force an email sign out, and just assume it’s dead because they won’t be able to turn off Find My.
I also work from home, so I’m more suited to having it in this mode of operation.
I've had phones for close to a decade now (Moto X 2014) that can detect when I'm looking at the device and extend the timeout. So if I glance at the device every few minutes checking on the recipe or a map or whatever it'll keep the screen on indefinitely.
iOS has “Attention Aware” features but these features don’t account for atypical use cases like when I’m running some persistent app that needs foreground use (like a firmware update on an IoT device) that I can’t be bothered to stare at.
