Gambling can change the attitude of someone who tends to become a stubborn person, and indeed this can of course have an impact on their relationships, whether it be family, partner or friendship relationships, where they will experience the bad effects of gambling, which can make them change as well.
Can gambling actually change someone who is bad mannered for good instead of getting them more complicated in their wrong doings, same way we can see gambling as a means of getting ourselves attached to something that could get us being occupied than having much time on unnecessary things, we should also be mindful of not allowing irresponsible gambling to affect our personal relationships.
because even though some of majority may take gambling to be an entirely bad and negative impact creation,
the reason why Gambling is considered bad by majority of people is because of all the risks and chances of loosing money involved in it. which I think are true. but in actually gambling is only bad if it is done too much. excessive of everything is bad for us. not just gambling.