Keeping children away from gambling is usually the best way, because if children are involved in gambling while they are learning, the future of that child is bleak. Because generally before 18 years of age every child's education is most important for his knowledge acquisition, and gambling addiction is the person who has seen someone gambling before. Because if there is no gambler in your family then there will never be a gambling addict in that family. Because children usually learn politeness first from their parents, and if instead of politeness they get a sense of gambling then that child will definitely show the will to gamble. So I think it is most important to take care of yourself before taking care of children.
Yeah, the brain of the kids is still being developed, so they need some time.
In general it is a good idea to have checks and balances that don't allow kids to be able to be around those things.
But at the end of the day, parents should teach the kids to be able to confront those things, because they will have to do that anyway later on.
No matter how well protected, children need to be aware of or more precisely directly recognize the existence of gambling through knowledge as well as participation, it does not need to involve too much real money, just enough to know the value of money in here, how fast and cheap it disappears. Parents can only look from there to consider whether the child's original personality can be a gambling enthusiast or not, if so, simply correct what is initially wrong to become good, the correction has reached the threshold of being impossible when the child is too aware of this world.