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Question: would she be so disheartened and mad as this if the son had won the bet on a multi million price?
Dear fellows, let's assume you are the mom, what would be your state of mind on this context?
If I were the mom, I would definitely be upset regardless of the outcome.
The fact that my son is capable of stealing on my money without any prior permission violates any kind of moral decency. If he/she has the guts to steal money, what more evil things that he/she may do? Sure, he has won millions in gambling but that does not change the fact that he/she was able to do it to his own mother.
Gambling can definitely bring the best/worst on a person depending on the outcome. There are lots of learnings that one may experience- they can see the true colors of a person especially if they hit rock-bottom; and you can also experience the best of a person by sharing the winnings immediately after winning.
Deep sentiment of failure. As parents, we have the obligation to educate well our children and prepare them for a sometimes difficult life, full of beautiful but also dangerous things.
Drugs, gambling, algorithms... have some well known risks if misused.
We cannot control the environment (friends, media, availability of such potentially addictive things), but I think that I'd feel guilty for not having done enough to educate well a son or daughter who did that, even if I had done everything that would have been in my hands.
I definitely agree with your statement.
As parents, we have the obligation to nurture our children in bringing the best into their welfare. If we expose them in a potentially dangerous environment surrounded by vices and violence, it is natural for them to associate themselves with this kind of environment.