Share your insights or perspective on the financial matter presented in the input.

Why don't banks allow more control over credit/debit card charges?
Credit card fraud is an extremely (to stress, EXTREMELY) small proportion of total credit card transactions.  The card issuing entities all offer zero fraud liability, even on debit cards.  There are millions of transactions every day and fraud loss just isn't worth developing, and supporting, an additional authentication layer that faces the consumer. To be clear, the downside is cost.  Cost to develop, cost to implement, cost to maintain, cost to support.  All of this to stop something that millions of people have yet to even experience.