one day they will definitely do that, physical casinos really love money, if crypto is adopted there is no reason they shouldn't add cryptocurrency options to their business. sooner or later it is something that casino owners have to do as a form of following the trend. and I'm sure the concept will not make it difficult for gambling players who want to use crypto to make it easier to deposit or withdraw.
1. Everyone really loves money, that doesn’t really prove a point
2.There is a reason why casinos would want to avoid crypto. First, the legal ones will have to arrange rules in accordance with certain countries, and, if cryptocurrencies are banned there, there’s a high chance that the casino itself will lose a whole geographic sector due to that.
Second, casinos benefit from knowing their customers in the face, so to say, they offer bonuses, give special treatment, try to make sure that the client will remain loyal. And, in addition, reduce cheating by requiring KYC. Needless to say, with the full adoption of crypto and the idea of anonymity, all of that will be harder.
As for your second point, I am absolutely convince that at some point in the future there will be no way around accepting cryptocurrencies as well. Legally is an easy one, should crypto be prohibited or rather belong to a legal grey area, serious physical casinos would deny it. If it is officially allowed, they would certainly at some point allow for cryptos to be used. If you are a decently high net worth individual and you would prefer your bank to not know you just gambled big time, you could go for BTC, still do you KYC at the casino and either leave with more, less, or no Bitcoin again. I think for individuals who prefer a certain level of privacy, that'd be a reasonable point for a casino to in fact accept crypto. Crypto would also be much safer than cash in conjunction with KYC, no?