The phrase "Why Not Tunis" appears to refer mostly to places or venues named "Why Not" located in Tunis, Tunisia, such as cafés, clubs, or restaurants called "Why Not." These are popular spots attracting locals and tourists, offering lively atmospheres and social settings in the city of Tunis. There is no indication that "Why Not Tunis" refers to a question or concept beyond these place names in the available information. If the question is about "Why not choose/visit Tunis?" then it would be helpful to clarify, but as it stands, "Why Not Tunis" is mainly the name of some cafés or clubs in Tunis.
