Yes, the possibility of addiction applies to everyone regardless of who they are, old or young, poor or rich, everyone has the opportunity to end up becoming an addict, and in the end the point is not much different from what you said that if we don't want to end up addicted then gamble wisely in the sense of gambling with full limits on time and the amount of money at stake.
Therefore, this is the reason why I often say and advise anyone, especially those closest to me, to first understand what they are actually facing, the way is to rely on a rational mindset in responding to gambling so that you do not misunderstand what is meant by the chance of winning in gambling, and if you have done everything well and correctly then I think you should be free from addiction.
If we still talk about the age, there are really-old people who are not capable anymore of gambling or do any other addictive things but they are only waiting for their lives to end. (I'm sorry if that sounds offensive, I don't mean it though). Same goes to the new-born individuals.
The only thing, they can do is to eat (drink milk) and wait for them to grow. If we don't want to end up becoming an addict in gambling, then there is a better way than still gambling but playing wisely and that is none other than to not gamble at all.
This is more sure because I'm sure that no matter how confident we are, there will be something that will play tricks on us and screw us in the process. Gambling is not hard to understand and we will literally just push the button to play but the problem is our emotions that can jump depending on the outcome of the game.
If you don't want to be addicted then don't get involved in gambling at all? of course, everyone knows that when you are not involved in the activity then you will not experience the positive or negative impacts of the activity, but the problem is doesn't everyone have their own right to choose whatever they want to do my friend? of course, therefore above I direct my ideas more to some suggestions that I think are useful to prevent someone involved in gambling from gambling addiction, namely by knowing and understanding first about what activity you are actually facing regardless of the unwanted possibilities when someone has gone through the process.