I think if no preparation were made before the trip, it could cause people to forget important documents. For example, if someone doesn’t check their passport or visa, they might not even be able to travel at all. It could also make them spend more money. Without planning, people might need to book hotels or tickets at the last minute, and usually the prices are much higher. Another problem is that it could create stress and frustration. Instead of enjoying the journey, people would be worried about solving unexpected issues. That’s why I believe some preparation is always necessary to make the trip comfortable and enjoyable.