I use FingerPrint ID a lot on my laptop (via TouchBar) and on iPhone and iPad. I really miss it when I'm on my iMac. I don't use the TouchBar for much else. It's FingerPrint ID I want. If Apple produced a keyboard with FingerPrint ID, I'd buy one. For those who don't use an Apple mouse of keyboard, it might be awkward. But I'd rather not have the feature on a FingerPrint ID only device. Perhaps I'd be content if the sensor was on the iMac screen or surround. Perhaps Face ID somewhere on the iMac screen would be a good alternative. Who else might want this feature? How would you like it implemented?