A friends appartment building had had a keypad lock installed a few years ago. Nice physical buttons. I swear the lock opened before I pressed the last number of the code, that fast. Sadly they changed it to an even newer lock system a couple of months ago. Now it's still physical buttons but the unlocking takes a couple of seconds and is totaly quiet. So you try to open the door and nothing happens. And then you try again and then it works. The friend often gets calls from visitors asking what the code was again because they can't get in. UX seems to be hard even without mixing in touch-controls.