Yes, in my opinion there is a good side and a bad side, in some countries gambling are prohibited and the user can even be arrested, on the other hand gambling can help the country's economy to develop and attract tourists, for example Las Vegas
If the country makes gambling legally, it can help the country to gain more income from the gambling industry. In that country, we will see many casinos available and ready to get more people to play gambling. The government can use taxes to that gambling casino while earning more income from the tourism section.
But the government needs to aware of the gambling activity for their citizen because that can attract them to visit the casino and play gambling for longer. The government needs to think about how they're going to solve addiction to gambling because maybe some people will get addicted to gambling.