Gambling can affect self-esteem, relationship's, physical and mental health,work performance and social life. It can harm not only the person who gambles but also the family, friends, workplaces and communities.
Maybe you should just be specific. I am a gambler, and I don’t have any effect on my family members or community. The only people from whom I know that their gambling activities always affect them or the people close to them are the addicted gamblers, they are the ones that do crazy things just because they want to gamble, and their activities are affecting people negatively. Addicted gamblers activities are the ones that make society have a negative mindset about gambling, but I don’t see anything bad about gambling, just that we should try not to be addicted to it.
Only people who are addicted to gambling will have a bad influence on their environment and themselves, so someone who has an addiction tends to be detrimental, therefore most of the society and norms do not like gambling because it can indeed have a bad influence on someone who is already a gambling addict, we may not have to blame the platform but in this case they also contribute because they provide a place for people to gamble, But this is complex because gambling has many meanings for its fans, first a place of entertainment and second a field for making money, and it is the second option that makes a person bad, because in some gambling advertisements say, win money with a certain nominal, yes maybe some stupid people will consider it an opportunity for them.