I can agree this generates more problems than solutions since most people seek other means to gamble in hiding and serious caution not to be discovered, both the young and old alike. Now the young gets more creative not in productive activities, but secrecy in gambling activities, moreso the chances of regulating their actions are limited since they cannot even own up to be actually gambling.
The country loses also since the casino enjoy their own share of their citizens involvement into gambling since they cannot legally claim the taxes since they banned the casino from functioning in their region while they're actually functioning indirectly.
Yes, that's why prohibitions cause all kinds of problems, problems that wouldn't exist if the activity was carried out normally. I think we should all start from the fact that the casino is for adults, and that each one of us who are adults should take this responsibly, and if it gets out of control, then we should find a way to improve or get out of any problem. Prohibitions on fun activities like casinos should not exist.