in my opinion, the rich hire companies specializing in market research and statistics that assess the risk vs benefit of creating an online casino and with that the rich decide whether or not to go ahead with the business, if we look closely we will see that there are no famous millionaires that an online casino is running and I think that the reason is precisely because in the online casino there is less interaction between customers, so the owner of the online casino will not have much to do in the casino and also because of the issue of licenses, many rich people do not come curacao as a big country with a good reputation when it comes to laws so this keeps famous rich people from creating online casinos
A rich person from the USA or Europe or Japan will prefer to create physical casinos in the USA or Europe or Japan because with that they will be able to attract their very rich friends and their millions of fans to go and play in their physical casino and in the physical casino they will not have problems with government laws. there is still a long way for online casinos to be able to obtain a license from countries in europe and the usa, probably on the day that happens then we will see that this online casino market will be highly respected by the governments of these important countries
I don't think that has anything to do with licenses or anything related to that, it basically depends on one's interests and preferences. A rich person who is also a fan of cryptocurrencies will definitely focus more on creating an online cryptocurrency gambling platform because they know they can't accept cryptocurrencies in a land-based casino.
Similarly, someone who isn't interested in cryptocurrencies or online stuff, will tend to go towards physical casinos as they will only consider them to be real casinos and they might also think that physical casinos run better and are more profitable.