On Purim when looking around I see children and even adults wearing superhero, disney and other fantasy clothing, on the other side I see all kind of costumes but often not related to the Jewish culture, history nor the story of Purim.
This made me wonder whether or not one should wear these kind of costumes.
When looking at the sources to wear masks or dressing up; pretending to be someone else, and the tradition of Purim shouldn't one consider a Jewish background when wearing a costume; because sometimes it seems we're joining the world in some carnavalistic event.
This made me wonder if it could be appropriate because on a day like Purim one hide's its identity, masks himself or dress up so that one isn't recognised. In order to do so one could become more like the rest of the world/it's surroundings, so one would go up in the crowd, and others can't make a distinguish between you and the others (in opposite from the normal commandment not to do so)?
In conclusion: What is or isn't allowed and why so?