When a minor becomes addicted to gambling, it can sometimes lead to dangerous behavior. A minor boy fails to control himself. He may sometimes behave abnormally. Here it is the duty of a father to take care of his son at least till he reaches adulthood. A little delay here can sometimes lead to great danger. Which may never be recovered.
Addiction is not good both for a minor or an adult. Everything is supposed to be done in moderation. Be it drinking, clubbing or gambling. Even if you are doing good thing, your goodness should also be moderated so that people won't take undue advantage of you.
While an addiction at any point of our lives is always bad it is even more damaging when the person is young, and this is because at the time your brain is not fully developed yet, and this could cause that person huge problems in their current and future development as a person, it is because of this that we need to keep children away from gambling at all costs, because even if I like to gamble I began as an adult and I do so responsibly, so I do not suffer from any kind of side-effects due to my gambling hobby.