WHOT is not popular in my country. It's kind of a simple rule game. Anyway, not returning the change is just making sure that the player will keep playing the game until he has nothing left or he wins and wants to stop already. Sort of a hostage but it's very common in a local betting shop.
That is major reason where kids exist is good to hide because gambling is not what one need train up a child with, beside not all business or engagement need too much exposure, it is of more respect not showing up for everyone to know your engage in gambling. Though gambling may be legal but most society sees gambling as person that lack dignity and integrity, which brings down their self esteem below who they are hiding can prevent this with ease . Last where your wife kick against it it's good to hide to maintain peace in the family, I don't see hiding as bad thing the reason could also be best explained by who that practice it .
Just like on what others been saying that just make it sure that you dont mess up your life with gambling because this is where people would be mainly be looking at and on the time
that it will really be happening on you then this is the moment that they would be laughing into your condition. This is why i cant blame others on why they have
decided on hiding themselves.