Both Visa and MasterCard are the most popular companies. I even don't know any other card provider so it tells something.
P.S: Just imagine how will change the world if we can use crypto card to buy coffee, products in supermarket, pay for transport, etc. But there is another problem: currencies volatile and how to deal with it.
It will be a wonderful opportunity to pay in the store using a crypto-currency card. Only the value of the goods I think will have to be tied to the dollar so that sellers do not have to constantly adjust the price because of sharp changes in the rate of the crypto currency.
Maybe there is no right way to abandon the dollar and fiat. Sooner or later crypto community will understand this) Or if it will become possible, only in the distant future when we understand how to create new method to estimate the products cost.