You do it to my wife's attempt to "sign in", and you do it to me.
You want us to give you a fingerprint ????? How do we do that? Why do we need to do that?
Alternatively, you wish us to "text" you. That is impossible.
We are both nearly 90 and have multiple landlines throughout the house - 7 in fact.
Neither of us has a mobile cell phone - no smart phone - no dumb phone - nada - just landlines
You can't text with a landline.
And I keep telling my grandchild that I don't even know what a twitter, a tweet, nor a text is.
If there is a problem, please tell us what it is. Don't keep us in the dark. phone us. or give us your phone number.