And the method by which you get root, which involves unlocking the bootloader and using a custom recovery to flash the su binary and an app to manage it, is in itself enough of a deterrent that only people who know exactly what they're doing do it. It's impossible to root accidentally, you have to install adb/fastboot on your computer and follow instructions. And then every time it boots there'll be a warning that the system has been modified.

Google though... I really hate their stance with SafetyNet. It's as if they're trying to say "your device can either be fully useful or fully under your control, but not both".

I still don't get why iPhones absolutely can't have unlockable bootloaders.