[imran3740]

What about a physical killswitch goes against Apple's design? The iPhone has always had a ringer/vibrate switch on its side since it was introduced. Obviously it doesn't do anything hardware-wise, but it's still a switch that disables some functionality.

[slededit]

That has a common use case of not wanting your phone ringing in a meeting.

People expect their computers not to listen to them when not actively using the mic. Your switch is the program that records you, a second is redundant and confusing.

[Spooky23]

It’s a part that when it fails is probably a motherboard replacement ($), and it fails often because people.

[IBM]

Almost all of Apple's security features are invisible and by default and don't get in the way. They're striking the balance between user experience and security.