I don't agree. I think it should be legal (as long as going business offering gambling games is legal which is another thing to consider) to offer a deal: "Let'

I don't agree. I think it should be legal (as long as going business offering gambling games is legal which is another thing to consider) to offer a deal: "Let's play a game where you have 0.98$ ROI for every dollar staked. In exchange we offer high variance and thus a chance you win big". As long as the casino offers a game true to the promise they should have protection against people looking for loopholes the same way there is protection in contract law. Gambling games are a form of reverse insurance. With insurance you pay to reduce variance/risk. In gambling games you pay to increase it because apparently a lot of people enjoy it. As long as the deal is "come play this game, we offer negative ROI in exchange for high variance" and not "come at us, try anything to win at the game we have here" the house deserves protection imo.