Bricks and mortar casinos these days are featuring e-slots and many e-games versions such as blackjack, roulette etc. but almost never are transparent with the odds. And the same goes with many nationally licensed online casinos too. The only provably fair game online casinos will have is Crash, and that's even IF they are running it under the proper license and not just stealing the concept without authorization.
Statistically speaking, most gamblers these days play on casinos licensed by their country's government for many reasons.
But in terms of transparency, crypto casinos that usually are licensed under more permissive offshore licenses (or maybe not even licensed at all) have standards of transparency that are much higher.
In my country, local online casinos are regulated by the government. They don't use a Provably Fair system like crypto casinos do but the government inspects their equipment and tests their Random Number Generators to ensure that users experience fair gambling.
One benefit of using a local online casino is that you can deposit money from your bank account with a single click and then withdraw instantly.
For instance, government licensing bodies may be focusing on income statements for "protection" or taxation.
This is a very stark contrast to what standards the crypto gambling industry holds itself up to.
KYC goes against everything that crypto was supposed to stand for, but now we see the adapt or die mentality when it comes to casinos because it basically is comply with the government or be shut down. Sure they could operate for a few months and get away with it, but eventually will be pressured by their license provider and the government.
The players are mostly on board, but I think a high % disagree with the process. A lot would prefer the anonymous factor to come back into play.
As far as I know, if crypto casinos offer only in-house games and don't have slots and live casino providers, they can operate without KYC demand. This was the reality years ago because governments were saying that Bitcoin is not money, it's a virtual thing and doesn't carry monetary value but recently things have changed and they admit that Bitcoin is a currency, so the requirements for casinos became different.
Btw casinos like Freebitco and Bustabit, Bustadice and Moneypot don't or rarely ask people to submit KYC, at least we haven't heard about that as far as I remember.