It is interesting to know that Americans placed around $166 billion in sports betting in 2025; that shows how popular sports betting is. If we compare this with their entire movie industry, music industry, and even books and museum industries combined, that number doesn't match the sports betting industry alone.
Do you think this is a positive thing for society, or are they moving in a direction that isn't going to be good for the general public in the long run, and many people will end up being gambling addicts???
There are several issues and assumptions in your thread, but let me address the question first. If you want to be concerned with the particular problem of addiction of any kind, the best solution is always a complete and radical ban! However, imagine the response of NPC humanoids if you banned their alcohol, gambling, cigarettes, and most extremely sugary products. They would riot over this more than they would riot over losing liberties, because they are useless animals that behave and are treated like cattle. The governments can't do this approach because of this, that is why some behaviors that are extremely dangerous are allowed but the government try to strike a balance between allowing and not creating too many addicts -- that is why we have regulations, otherwise there would not be a need for them.
Next, the number that you quote does not mean what you think it means. It is clear that most users in this thread did not think for 2 seconds what the actual number represents. The amount wagered is not the amount that is lost by bettors, this does not mean that people took $166 billion of their own money and put it into gambling. A very big percentage of this money is recycled through continued betting, people who win often continue to bet again. So the actual revenue is only a fraction of this number, unless it is misreported. Therefore, the economic impact of this is much less than it seems. Going back to the harm to society, it has nothing to do with the amount wagered -- you literally can't derive any interpretation from that. What matters more is how gambling is distributed across the population, and the smaller group of people that gamble and develop actual addiction related problems accounts for disproportionately big share of the whole losses. So most of the harm that gambling does is concentrated in a small group. This puts aside that any gambling is harmful and it has a negative impact on your behavior across everything that you do, but you get the point. We can ignore the small issue compared to the big issue or at least until we solve the big side of it.