Also, there's a fundamental security issue with allowing doors to be unlocked remotely. Door locks aren't particularly secure (it doesn't take too much expertis

Also, there's a fundamental security issue with allowing doors to be unlocked remotely. Door locks aren't particularly secure (it doesn't take too much expertise to learn how to lockpick them), but they require someone's physical presence in order to unlock/bypass as that provides a disincentive for criminals to be seen lurking around a door with various tools in hand. Once you remove the requirement for a physical presence, it's more or less risk-free to attempt to hack the door and you can wait until you are successful to then approach the door.