Having people that surrounds you to give you some warning and reminders will certainly help you out. It's like whenever you're itching and starts to crave to gamble, they are there to stop you.
But not at all times that they will be there and you still need to get on your own feet to avoid. It's hard to get rid of it but you have to overcome it not just with will power but also with acts.
As in do everything you can to avoid if you want to get rid of the addiction that's making you lose control of yourself and money.
It's not just about surrounding of giving warnings, someone who is extremely addicted to gambling but wants to get rid of their addiction must have someone around them all the time that will keep them engaged with other stuff and keep them away from gambling so that they can slowly stop going towards gambling. The urge to gamble for addicted gamblers is very strong that they would never be able to control it themselves if there is no one around.
That's why, when an addicted gambler acknowledges the fact that they are actually addicted and are facing problems due to it and they finally want to get rid of it, one of their friends or a family member can give them a helping hand by staying with them all the time so that they can stay away from casinos.