There is nothing wrong with saying gambling is aided by the devil, in this case the person is saying that for physical casinos or online casinos, (that's what I have in mind)? Because if we talk about online casinos, can the devil manipulate our minds to keep gambling, we all know that the users of online casinos or gambling platforms are a lot of users from outside, I think, I doubt it, and for that person maybe he is advising you in an unreasonable way for you to stop gambling. The fact is that we ourselves manipulate our thoughts about gambling,
However, gamble is not a thing that anyone needs to force somebody to participate on, if anyone likes it, he or she is free to gamble, and if the person doesn't feel comfortable with gamble anymore he is also free to stop gambling. Everybody have their own perspectives about gambling but it's very important to know the main purpose why you are gambling, if you are gambling for entertainment do nothing but entertainment and if you are gambling to make profits you better gamble responsibly.