Despite how companies that produce cigarette publicize the negative side of their products, we have not seen any survey record saying numbers of smokers have reduced because of the fear of lungs disease etc.
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You're right, this is the same case with cigarette addicts, but despite a lot of appeals and surveys on how harmful cigarettes are and some embedding of images of the effects of smoking, it won't diminish anything because addiction will make anyone forget about the negative effects that will occur.
And about the income statement explained by the OP, it cannot be a benchmark to reduce losses due to gambling, just like the simulation about cigarettes earlier.
Those who gamble will continue to play and those who become addicts will remain the same and even more aggressive without appealing to the income statement.
Profit and loss statements will also not be available on private Online Casinos because some of the Online casinos are not officially registered, and it may also depend on the regulations of each government.
But maybe with the Profit and Loss simulation recorded by yourself as a reminder, maybe it will be an important note.
Records every transaction that occurs such as Deposits, Any bets on Matches or on the type of games played in such casinos and also records for each withdrawal.
So it can be seen from the records made in several periods, whether there are more profits or even more losses.
It will be a guideline and measure whether someone is addicted or not with a manual record of profit and loss made for themselves.