Crypto casinos cut out the middleman by using direct wallet-to-wallet transfers...

https://www.standard-journal.com/article_6bb10faf-99b5-4c2c-b830-fddbf1e5eb15.html

Crypto casinos cut out the middleman by using direct wallet-to-wallet transfers for Bitcoin and Ethereum, leading to near-instant withdrawals compared to the multi-day lag of traditional bank transfers