I would also suggest capping the amount that people can bet per week or month to prevent too many weak human minds from ruining their lives and worse than that ruining the lives of their wives and kids.
100/week is 5200/year. That's probably the difference between making ends meet and being always in debt for a lot of households - the median us household income is about $50k and we're talking 10% of that. That's a huge difference for the median household, and likely pretty catastrophic for the bottom quartile.
Which arguably is as much a problem with income inequality as anything else, but the point is, gambling exacerbates existing social problems.
