Gambling is very dangerous, there is no mistake about it. A person who has started gambling once may never be able to get out of the addiction of gambling. Because the addiction of money is more dangerous than all the addictions in the world. For example, by gambling a person can easily get a lot of money and because of this when they win once or twice, a person becomes greedy for money and thus he becomes addicted to gambling.
But yes, there are some people who do not take gambling or anything as an addiction. They can get out of a matter very easily. If they gamble with a little proper financial management, then they can easily earn money from gambling.
I think addiction to anything is a personal matter. Gambling is a bad thing in the eyes of society because most gamblers lose money in gambling. There are different types of gambling options within the gambling category. Some of them depend entirely on luck. Some games require experience. But, gambling based on luck is not as fun as playing games using experience. But most gamblers rely on their luck in the beginning, so they lose again and again. Hoping to get back the money they lost, they start gambling again, and in this way they get stuck in the same loop again and again.
On the other hand, those who do not leave gambling completely to luck from the beginning never become addicted to gambling. They have accepted gambling as a fun game.