This is the reason why I don't agree with some people who think that gambling is not just a form of entertainment. There are certain people who believe that gambling is money-making if it is done in a more serious way. I don't think so.
Gambling can be a source of income but it isn't a money-making machine. If you happen to browse youtube, twitch, there are people who find a way to incentivize gambling activity. These people are smart enough to think outside the box. They do have fun and frustration depending on the result of their gambling engagement and video creation but nonetheless, they are able to make their gambling activity to produce money.
The more a person thinks that gambling gives money, the more he is facing the risk of addiction. If it is for fun then a moderate amount of loss is nothing. It is because that money spent was only a sort of payment to the entertainment one gets.
On a serious note, I disagree with you that these people who make a living out of gambling engagement are more prone to gambling addiction, instead, I also believe they are less likely to get addicted. I read here why they are less likely to get addicted and it sounds convincing to me.
I do agree that there are better ways to a source of income, but in terms of turning into a compulsive gamblers, they are less likely to get addicted because
1. They always plan their action
2. They make a careful approach in every bet they made.
3. They manage their bankroll really well to not get busted as soon as they engage in their gambling activity
4. They have complete control of their time
5. They don't chase losses, if they feel that it isn't their day they just stop and go home. Or linger a little longer for socialization.
I agree with the risk of the environment but I bet these type of gambler know how to handle the risk around. Else, they won't be in the industry if they failed to adapt in this risky environment.