They must realizes that they don't have to use gambling as a hobby. That will prevents them from much trouble that they can face. If they can be wise, they will only spends some money to playing gambling.
Using gambling as a hobby is like when you're inviting problem for yourself because you can't be peaceful when you're always losing. Having a hobby that you won't be enjoying is not a good decision. It's better to have a different hobby but you can spent some few hours gambling from time to time. When gambling isn't your hobby, you can't get addicted and you won't be gambling always that increase your losses. Anybody saying he can make gambling a hobby hasn't experience being addicted to gambling and he can't stop gambling while all that happens to him is him losing money anytime that he decides that he wants to gamble.