Most planning tools assume every group behaves the same. In practice, couples and friend groups break for different reasons, so the planning model should be different from the start.
Couples: Protect Energy and Intent
Couples usually care about pacing, meal windows, and low-friction transitions. Too many hard-timed bookings create stress instead of memorable time together.
Friends: Design for Partial Alignment
Friends often split by interest, pace, or budget. Better itineraries include optional branches and reunion points, with shared anchors like dinner or headline activities.
Planning Implication
Alfred's itinerary logic can prioritize either cohesion or flexibility based on traveler profile, producing plans that behave like real groups instead of idealized checklists.