I dont know where you got that from, but that cant be true. Most sites still rely on traditional payment methods like credit cards and PayPal. While some e-commerce platforms and specific crypto-focused businesses accept cryptocurrencies, its definitely not the case for the most sites.
It seems you are actually getting the wrong message from my write up. Firstly I never said all websites or payment portals accept crypto because definitely not all of them do. However I still very much stick to the fact that many payment portals do accept crypto as a means of payment. Crypto has become widely accepted that you hardly come across a business setup that doesn't accept crypto. You can Definitely even find some very small businesses without websites but still accept crypto payments.
There are many cards that you can use to pay with crypto directly if the other party is accepting it (obviously). I also use p2p because I know we don't have such facilities in our countries, and in order to buy Netflix, Discord and other stuff we have much cheaper way so I won't be spending my crypto on these products.
Cards? Like I. Think the OP is literally referring to something like a credit card but for crypto. I haven't actually experienced any payment method like that though like I said in the first quote I've seen online crypto payment options and in addition cold cards but you still can't pay with them like a credit card.