Addiction is still the main problem for regular gamblers, even tough compulsive gambling actions will lead to destructive behavior let's not forget the possible consequences for those who can't control this "funny activity". Quitting gambling addiction is not easy for some gamblers it is as easy as just banning the casino account on online gambling platforms. Decreasing the gambling activity has some positive effect on this purpose btw, so it depends on the person how he wants to quit gambling.
Non-compulsive gambling doesn't cause addiction, so the basic problem is compulsive and excessive gambling because someone who gambles while staying within their limits will barely get addicted to gambling and even if they get addicted to it, they will only get addicted to the games or the habit of gambling and they will never spend everything they have on gambling because they know there is no way for them to recover the money once it is gone.
Compulsive gamblers will always become addicted to gambling and the main reason for that is they will be chasing their losses every time, and when don't stop because they think they will eventually do it which is what they think and not what happens.
So, people that avoid compulsive gambling will automatically stay away from gambling addiction.