Crypto casinos let you play using digital currencies and you control your own...

https://fun-wiki.win/index.php/Why_Is_My_Casino_Deposit_Instant_but_My_Withdrawal_Takes_Longer%3F

Crypto casinos let you play using digital currencies and you control your own wallet and private keys. Traditional online casinos use regular money, where your balance like £20 stays £20 unless you deposit or withdraw