Almost all the casinos have terms and conditions in basic English which are easy to understand but too long to read.

With the crypto gambling being more and more licensed, I don't think many casinos exist now that don't ask KYC under some situation.

Sportsbet.io does it but I don't think every casino can do that because the transaction fees is not something casinos are charging, it's the cost of making that transaction and cannot expect the casinos to pay it.