I see 2 issues with using Bitcoins.
First of all, the Bitcoin's value changes way too much and way too often. Just imagine a situation when you win 0.2BTC and then you wait until your pending withdrawal is approved. You need to verify your account first in the casino, wait until they process the withdrawal...getting your winnings from certain casinos can take few weeks. The value of your winnings (0.2BTC) can change a lot during that waiting time.
Secondly, we see some issues with crypto wallets quite often. Whenever you do a mistake and send your money from a bank to an account that doesn't exist or it exists, but you send to a wrong account, you still have chance to track the payment and get your money back. There's an institution (the bank) you can contact regarding this. In case of using crypto, there's no institution that would help you regarding this. The money is simply lost.
That's why I'm still hesitating to use crypto for regular transactions.
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