Actually I'm surprised why someone need to hide their gambling activity if gambling is legal on there!
For countries who prohibit gambling, it's make sense for people to hide because they might be punished and go to jail.
Gambling isn't a criminal thing, it's really normal and people are having fun while gamble. I don't understand with people who think hanging out in bar or gambling is a bad thing, perhaps they jealous since they don't have any friends for going out lol.
Actually gamble is legal in many countries but in some countries and some tribes there are people who don't consider gamble to be a legitimate things that's why most people essentially the young ones that just reached 18 years will gamble hidden so that their parents will not know that they are gambling. I keep my gambling habits secret from my parents for just one purpose, so I think those that hide their gambling habits have a reason for that.
You are right, but on the other hand, in countries that have given permission for gambling, there will always be gambling activities that are deliberately hidden by the perpetrators, they hide it not without reason.
First and most basic thing is that not everyone will like gambler, after all in family it is not certain that gambling activities will be well accepted even if they live in country that has legal permits for gambling.
All because of the impacts that gambling can cause, we all know that gambling can cause various negative impacts which are really very dangerous if gambling is done with full mistakes and instability in the gambler own mindset.
In addition, if it is between parents and children, as child they will definitely hide their gambling activities, there is special worry that will arise in child feelings when his parents find out that he is gambler.
This is very normal attitude to occur, even I myself have done it before when I was young person living in the same house with my parents.