aside from the general discomfort that cariocas feel in discussing such intimate matters with visitors, being able to properly address any of these policies would require a level of knowledge and experience that is usually well beyond any visitor's reach - those who truly wish to debate any social policies, and the underlying causes that lead to them, should understand that there is a specific time, place, and person to do it with, rather than discuss them at a social meeting or gathering.

a great approach would be to note down some questions and concerns and sit down with a well informed and willing locals to ask their view - this would clearly show genuine interest and the desire to understand the many points of views before expressing any opinion at all.