Well it is quite difficult to get rid of addiction to gambling because even in this case what you said is true where family and closest people may indeed be quite helpful when someone wants to get out of the vicious circle where addiction has been in themselves but on the other hand it is only an option to increase support because after all someone who is addicted to gambling can only stop when they have the intention to stop in themselves.
As long as there is no intention to stop, the help from family and closest people will seem useless because they do not have the intention to gamble and only like to appreciate the help of those closest to them but do not eliminate the desire to gamble.
Overcoming gambling addiction has undoubtedly been one of the most difficult things for an addict to do, it's possible to do so but being possible doesn't make it easy.
To Overcome addiction, you need more than just a bunch people around you tryna help you get rid of your addiction. What a person really needs the most is the desire to quit the addiction, this desire always comes from within. You'll need to first take that bold step before someone else can step in to help you.
It's more like planting a seed, no matter the amount of water and sunlight you give that seed, if the soil is infertile, all the water and sunlight would be wasted efforts. If a person doesn't first cultivate that determination, then there's no amount of support from friends and loved ones that can effect any positive changes in the victim's life.
In my opinion in this case it is the same as I said before regardless of whether there is a special expert (therapy) to cure gambling or a family that helps us to stop and reduce addiction actually it will seem useless if in the end we ourselves cannot control ourselves because from the beginning when you really want to stop in addiction, there must be an intention from yourself first. because the existence of special experts and family is only a push factor so that we can stop the effects of addiction faster but if in the end there is no intention in ourselves to stop even though there are lots of experts and family who want to help to get out of gambling it will not be able to be done even though there may be some people who can but it is only temporary because the intention to gamble in themselves is still there.
This is what must be considered because we know that we alone can control ourselves and as long as that cannot be done then indeed in the end it will still be difficult to stop and you will remain in the effects of addiction even though many support you to stop gambling.