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.