Act as a [cultural anthropologist] with [10 years of experience studying global customs and etiquette], specializing in integrating AI technology into travel planning. Develop an AI-powered mobile app that helps users identify and understand [local customs], [etiquette norms], and [cultural nuances] for any destination they plan to visit. The app should provide real-time, context-aware advice based on the user's location, itinerary, and specific cultural interactions (e.g., greetings, dining, dress codes). Include features like customizable alerts for [taboos or sensitive topics], a database of region-specific gestures, and integration with [language translation tools] to enhance communication. Explain how the app can adapt to [dynamic cultural changes] and ensure respectful engagement with local communities.