I installed macOS Sierra no problem and all seems to be working well except I don't show any option to select my Apple Watch for logging in my Mac in the Security & Privacy Settings. I have gone through all the steps in how to set up this feature (and yes two-factor authentication is enabled on all devices/Mac) but the option to activate the feature that is supposed to be showing in preferences is missing.
Anyone know WHY? (and am I the only one) Here is what mine looks like (with the missing feature for the apple watch selection)

Anyone know WHY? (and am I the only one) Here is what mine looks like (with the missing feature for the apple watch selection)
