Yes, it's true that if someone gambles with the aim of earning, he tends to get addicted because he will continue to gamble and risk his money so he can get more money than before. Indeed, this sounds very stupid and strange, if it is not controlled properly then it is very likely that he will lose and far from winning, because he is greedy and really hopes for luck.
And it is true that a person who hides his gambling will reduce his interaction with his environment and cover it up as much as possible, because if he loses then people will most likely ridicule him, and if he wins it is likely that the result will be bad. the results of the victory will be used (utilized) by the people around him.
It is true that you said that if someone gambles with the aim of earning income, over time, he can become addicted because there is a feeling of wanting to get money from gambling. If he doesn't realize it soon, he will only get a worse gambling addiction but he probably won't be able to make any money from gambling. He could even lose a lot of money from gambling, especially if he is getting greedy to get a win from gambling even though he already knows that it is very difficult to achieve. Those who hide his gambling will only make things worse because no one is monitoring his activities and he can hide his gambling so tightly that no one finds out. That's why if one of our family members is often alone in his room, we have to ask what he is doing because we don't want something bad to happen to him.
But I guess it's the question on how you are going to keep it safe for you and not everyone knowing that you are a gambler. Of course maybe online you can do it, but if you want gambling to be fun then it should be on landbase wherein you can go out with your friends.
Personally, I've seen people who I thought that they are not into gambling, like in the education system, or even some that i knew on the government offices. But I just keep a tight lip and not tell everyone what I saw on a landbase casinos.
Yes, those who hide their gambling activities will keep it safe and no one will know about their gambling activities. But if that were the case, he wouldn't even know if he was already addicted to gambling. Maybe if anyone found out about his gambling activities, it would be too late to help him because he didn't care about other people's advice. Those who play online gambling can still enjoy gambling as long as they can control themselves well and are not easily tempted by promotions from casinos.
I know several friends who work in government offices who say that they sometimes play online gambling but do not say how much money is used for gambling. Well, as long as the gambling activity is not done excessively and they can still control their emotions, it's okay. But no one knows what could happen to us.