What you need is for all card issuers to be required to implement it by the network. Otherwise you'll still have people showing up to test all the cards that don't support it and the payment processors would still kick you off for that.
What you need is for all card issuers to be required to implement it by the network. Otherwise you'll still have people showing up to test all the cards that don't support it and the payment processors would still kick you off for that.