If you were friends with an alcoholic it would be pretty shitty to give them a bottle of vodka for their birthday.
People are not machines, it’s not as simple as deciding whether to do something or not. You have stronger and weaker days. Temptation makes it harder to do what is in your best interests, even if you’ve decided on another day that you’d rather not partake.
Getting concrete about gambling: lots of people decide not to gamble and just don’t. Lots of people decide they don’t care whether they gamble and they do. But there are also many people in the middle, who would rather not gamble, but find that they sometimes act against their own best interests, and their own past resolutions to not gamble. Bombarding these people with offers of free bets increases the likelihood that they will gamble on their weaker days.
When I hear takes like yours, I feel very jealous. I would love to always act in my own best interests and according to some policy I predetermined. But that’s just not my experience of how life works.
It seems like a gambling addiction is the same as not having the capacity to choose not to. Is that a misunderstanding?