> If I want to use the torch or flash then I’ll decide if there’s enough battery left

Lithium batteries are worn a lot by high amperage when they are already close to empty. They are protecting the battery from wearing out too fast.

If I am in the dark, and really need to use that torch, the batteries are the least of my worries.

"Enabling the flash below 15% charge may cause additional wear on your battery and should only be used in emergencies. Proceed?"

Not a fan of how this was implemented either, but the cue is the descriptive text under the button. If you do toggle Bluetooth or WiFi off from the settings app, it even uses a different icon in the control center.

I didn't realize the flash was disabled, that is super annoying.

On the plus side, i'm extremely happy about the car bluetooth based DND mode.

Alternative answer: This prevents your phone from completely dying if you turn the light on, forget, and shove it in your pocket/bag. That's a great feature in and of itself. Hell, i've accidentally triggered the flashlight outside in the sun and not noticed before i pocketed the phone before.