2Be_or_Not2Be :
To all those saying "Wait, I can't give my card to ..." - you seem to be forgetting that virtually all CC companies will let you get additional cards for others. So you can get a card linked to your own account for your wife, kid, etc. Then, when they get the card, they can secure their own card with their own fingerprint.
Maybe so. But I still do not want a card tied to my fingerprint.
When, not if, the card database gets compromised, I can get a new card.
I can't get a new finger.