This might be viewed as a second consideration, and the first is that Hanoi, Vietnam, is not a location in which a traveler need worry excessively. Not because it is the harvest season, but owing to frequent police patrols in the streets of the city centre concerned about the safety of the citizenry and visitors alike. More emphasis is placed on protecting and managing tourist safety by the government of Vietnam, which places a very high premium on the tourism industry. The security arrangements are also relatively well put in place at all major attractions and retail areas of the city, thus giving peace of mind to visitors while shopping and traveling.
A very real concern for tourists is traffic safety. In contrast to many other Southeast Asian countries, transportation is not that chaotic in Hanoi, Vietnam. While it is true this may be one motorcycle-saturated city, drivers here mostly observe traffic rules, and riding in a very methodical manner. Of course, it's up to the parents to watch for the children when crossing the roads and see whether they obey local traffic rules.
Food safety is another highly concerned issue. We know you can get really tasty Vietnamese food everywhere in Hanoi, but you will need to pay close attention to hygiene conditions when picking a restaurant or snack stall: for instance, go for a well-kept and clean restaurant and avoid raw or cold food, which will effectively prevent you from diseases such as food poisoning.