You've heard of credit card fraud before... right?
There are ways to prevent this, as has been already mentioned above, verification is the key.
You've got to be kidding me. Bring your 3-tier verification processes. You're still going to get defrauded if you allow crypto purchases with credit cards - period. If you don't understand this, then you're just being ignorant.
But please, prove me wrong... (hint: you can't, I'm just going to enjoy watching you fail if you try)
well im not here to teach you about creditcard merchant and banking technologies so if that is your view then what can i say but, you are welcome to your opinion. keep saying it's impossible, you'll believe it eventually. experienced point of sale and financial sector worker here who's worked in rooms with millions of dollars sitting next to me in cash.. but hey what do i know. if you try any creditcard fraud though via my implementation, you'll find cops at your door no matter what country u live in.