Maybe they could regulate it perhaps by bettering the chances of winning. Nonetheless, gambling addiction should be taken very seriously in my opinion and maybe they could even start temporary banning certain people who suffer from gambling addiction in order help them. Maybe there should more gambling rehab centers than there is now.
The reason for regulating gambling has precious little to do with addiction. No doubt it must be regulated, but the reason for that requirement is that when the government isn't being heavy-handed at casinos, organized crime steps in and creates all sorts of problems. Addiction is bad, but mafia control of entertainment somehow seems like a larger problem.