Gambling is not bad but the individuals make it so. And mostly the irresponsible and addicted gamblers make it bad. Those who are gently playing gamble with a responsible way are doing well in the society and also gambling has helped many ordinary people in the society. Many have used gambling to build houses and start business. So it is not really bad in the society but it is the gamblers spoiled the name "gambling".
Why people think that gambling is bad because those cult boys would do bad things in the society and finally they are in most times caught in the casino center by police so they called it as bad in the society. But it is not.
Yes you are absolutely right because gambling is never bad but people take it in bad way personally. We often see card playing in a bad light in the society but in reality card playing is not bad at all but it can be an important way to pass the time. We look at a negative view of gambling in society but if you actually imagine, you will see multiple important benefits of gambling.
It is an important means of spending time in a loneliness man. Again gambling is considered an important means of spending time for a busy person. But we personally drive gambling in various negative directions which do not bring anything good in the society at all. If the personal attitude is changed then gambling is not a bad thing at all but an important pastime to pass the time.