---777-777-777---
Let's go in parts, perhaps they don't do it, but it is a standard to have it by law, not because perhaps they want it that way.
Casinos by law must support certain organizations and they themselves must have the corresponding notices, online casinos have them, look for them, on other cases, the casinos, one of their functions is that they pay taxes, and these taxes should generate contributions to those institutions who deal with addictions.
In any case and as I mentioned and always mention, starting with the player, he is the one who should take his first $100 and pay for a consultation with a specialist, his first coaching should not be a Youtuber, a friend, or a casino, a responsible gambler must be diagnosed if he is prone to suffering from addiction.
There are people who become addicted, but are cured, because they are asymptomatic, but other types of users do not have that condition, there are studies on that, there are people who have symptoms of lack of dopamine, (e.g.) so, they are symptomatic players.
Gambling is in the queue for help from public institutions that should channel the state's income from taxes to this neglected disease.
But as always in that sense there is no better help than the support cultural and social, where governments should start. Not to mention that all help mainly comes from the moral of your home.
Please! Don't expect help from a casino or government, if you can, pay for professional assistance, even if you think you don't need it.