Blockchain is the present of casinos not future.
I think there are tons of people coming in from other casinos that runs with fiat currency and the more they learn about blockchain gambling the more they are staying and calling up friends to invite them over.
So, right now blockchain is literally the present and future of gambling since there is no better method, there are just people who have no idea how bitcoin (or any other crypto currency) is used so they are just playing on fiat casinos but as soon as they figure out how they can gamble on crypto casinos with provably fair and blockchain helps they are coming here and not leaving.
So, eventually more and more people will come here, there are plenty coming from fiat to crypto but none going crypto to fiat hence why we will only get bigger.
I do not understand so much hype around blockchain gambling, really
all it has got as the positives - pretty confident your roll hasn't been tampered with , but so almost any legit provably fair casino guarantees
other than that I can only name drawbacks and minuses : slow bet resolution , high bet cost ( as opposed to "free" in a standalone account based crypto casino )
you have to pay a tx fee EVERY time you bet and withdraw , so the house edge in reality is atrocious , you could pay 1-2% tx fee on top of the casino's house edge
lack of support if anything goes wrong , you say bye to the coins , whereas at a regular casino it could be corrected
talking about sending coins to the wrong address or sending litecoins to a bitcoin wallet etc.