Yes, gambling is addictive and that's why it is banned in many countries, but I think that banning it is not right. Adults should have a right to do whatever they want if that not harms anybody physically. I'm not saying that gambling is a good thing but everyone should have the right to make his/her own decisions.
Freedom should always be achieve but if that freedom can affect you then we should also implement a certain law, although I know that it should be a self-disciplinary we can also help those who cannot help themselves.