i think this is the good reason for the gamblers as they don't need to use their credit cards to playing gambling because using credit cards in online is too risky and could give bad experience when our credit cards data has been stolen. but if we use bitcoin, i think its a bit safe because we are not giving our details in any website and this is my reason when i want to make deposit in gambling sites.
Currently, bitcoin and other type of cryptocurrencies are the perfect thing to meet the needs of gamblers. Bitcoin is able to provide a lot of convenience that will not be obtained when we use fiat. I am sure more and more casinos will accept bitcoin as their payment method and bitcoin for sure can survive for a longer time.
Yes it is perfect to be the universal online gambling because bitcoin has bitcoin address which is the blockchain which can easily transact the money to the other one wallet address. So it is better to fund this wallet or to withdraw this wallet to a better one. And blockchain is the most trusted wallet address.