To be honest, I don't understand the purpose of the income statement requirement. In order to prevent money laundering, such a measure will not help in any way. In addition, for money laundering, the casino must be "pocket" or affiliated. The income statement is a measure to control expenses. However, the principle of cost control, primarily applies to government officials, and not to the first person you meet who enters the casino. Because cost control is an anti-corruption measure. Therefore, the connection of the casino with the control of expenses of an ordinary person is unclear to me. Or maybe I got something wrong?
Income statements are a measure of protection against compulsive and pathological gambling.
If your income is x amount of money per month, it's reasonable based on your income statement to not let you gamble let's say more than 20% of X in any given month.
In the UK it's quite a prevalent preventative measure that most gamblers have to endure because the government mandates operators to enforce it in order to keep their license.
But really I'm trying to highlight this point as the start difference between what the government considers "transparency" and what the player wants.
The government wants income statements of the players and detailed record keeping of how much everyone gambled so they can tax them.
But players want to know the RTP and the house edge. As well as know that they can bet with provable fairness. Governments have never cared to implement provable fairness. They only care to profit for themselves through players losing money. Whereas players want to know they're not being cheated. It's interesting to observe these antithetical interests here.